NEET 2017 Question Paper - Code B - Mock Test

Which of the following is a sink for $\text{CO}$?

The element $Z=114$ has been discovered recently. It will belong to which of the following family group and electronic configuration?

For a given reaction, $\Delta H=35.5{\text{kJ mol}}^{-1}$ and $\Delta S=83.6{\text{JK}}^{-1}{\text{mol}}^{-1}$. The reaction is spontaneous at: (Assume that $\Delta H$ and $\Delta S$ do not vary with temperature)

Identify A and predict the type of reaction when 3-bromoanisole reacts with ${\text{NaNH}}_2$:

Which of the following is dependent on temperature?

With respect to the conformers of ethane, which of the following statements is true?

Name the gas that can readily decolourise acidified ${\text{KMnO}}_4$ solution:

It is because of inability of $n{s}^2$ electrons of the valence shell to participate in bonding that:

Mechanism of a hypothetical reaction $X_2+Y_2\to 2XY$ is given below:(i) $X_2\to X+X$ (fast)(ii) $X+Y_2\rightleftharpoons XY+Y$ (slow)(iii) $X+Y\to XY$ (fast)The overall order of the reaction will be:

The equilibrium constants of the following are:${\text{N}}_2+3{\text{H}}_2\rightleftharpoons 2{\text{NH}}_3(K_1)$${\text{N}}_2+{\text{O}}_2\rightleftharpoons 2\text{NO}(K_2)$${\text{H}}_2+\frac{1}{2}{\text{O}}_2\to {\text{H}}_2\text{O}(K_3)$ The equilibrium constant ($K$) of the reaction:$2{\text{NH}}_3+\frac{5}{2}{\text{O}}_2\rightleftharpoons 2\text{NO}+3{\text{H}}_2\text{O}$ will be:

Which one is the wrong statement?

Which one of the following statements is not correct?

${\text{HgCl}}_2$ and ${\text{I}}_2$ both when dissolved in water containing ${\text{I}}^{-}$ ions the pair of species formed is:

The correct increasing order of basic strength for the following compounds is:

An example of a sigma bonded organometallic compound is:

A $20$ litre container at $400\text{K}$ contains ${\text{CO}}_2(g)$ at pressure $0.4\text{atm}$ and an excess of $\text{SrO}$ (neglect the volume of solid $\text{SrO}$). The volume of the container is now decreased by moving the movable piston fitted in the container. The maximum volume of the container, when pressure of ${\text{CO}}_2$ attains its maximum value, will be:(Given that: ${\text{SrCO}}_3(s)\rightleftharpoons \text{SrO}(s)+{\text{CO}}_2(g)$, $K_p=1.6\text{atm}$)

Mixture of chloroxylenol and terpineol acts as:

Pick out the correct statement with respect to $[\text{Mn}(\text{CN}{)}_6{]}^{3-}$:

Match the interhalogen compounds of column I with the geometry in column II:Column I: (a) $X{X}^{\prime }$ (b) $X{X}_3^{\prime }$ (c) $X{X}_5^{\prime }$ (d) $X{X}_7^{\prime }$ Column II: (i) T-shape (ii) Pentagonal bipyramidal (iii) Linear (iv) Square-pyramidal

The species, having bond angles of $120^{\circ }$ is:

Predict the correct intermediate and product in the following reaction:

If molality of the dilute solution is doubled, the value of molal depression constant ($K_f$) will be:

The heating of phenyl-methyl ethers with $\text{HI}$ produces:

In the electrochemical cell $\text{Zn}\mid {\text{ZnSO}}_4(0.01\text{M})\parallel {\text{CuSO}}_4(1.0\text{M})\mid \text{Cu}$, the emf is $E_1$. When the concentrations are swapped (${\text{ZnSO}}_4=1.0\text{M}$, ${\text{CuSO}}_4=0.01\text{M}$), the emf is $E_2$. The relationship is:

A first order reaction has a specific reaction rate of $10^{-2}{\text{s}}^{-1}$. How much time will it take for $20\text{g}$ of the reactant to reduce to $5\text{g}$?

Which one of the following pairs of species have the same bond order?

In which pair of ions both the species contain $S-S$ bond?

Concentration of the ${\text{Ag}}^{+}$ ions in a saturated solution of ${\text{Ag}}_2{\text{C}}_2{\text{O}}_4$ is $2.2\times 10^{-4}{\text{mol L}}^{-1}$. Solubility product of ${\text{Ag}}_2{\text{C}}_2{\text{O}}_4$ is:

Ionic mobility of which of the following alkali metal ions is lowest when aqueous solution of their salts are put under an electric field?

A gas expands in a well insulated container against a constant external pressure of $2.5\text{atm}$ from an initial volume of $2.50\text{L}$ to a final volume of $4.50\text{L}$. The change in internal energy $\Delta U$ of the gas in joules will be:

The reason for greater range of oxidation states in actinoids is attributed to:

The most suitable method of separation of $1:1$ mixture of ortho and para-nitrophenols is:

The correct order of the stoichiometries of $\text{AgCl}$ formed when ${\text{AgNO}}_3$ in excess is treated with the complexes: ${\text{CoCl}}_3\cdot 6{\text{NH}}_3,{\text{CoCl}}_3\cdot 5{\text{NH}}_3,{\text{CoCl}}_3\cdot 4{\text{NH}}_3$ respectively is:

Correct increasing order for the wavelengths of absorption in the visible region for the complexes of ${\text{Co}}^{3+}$ is:

Which one is the most acidic compound?

Which of the following pairs of compounds is isoelectronic and isostructural?

Which of the following reactions is appropriate for converting acetamide to methanamine?

Of the following, which is the product formed when cyclohexanone undergoes aldol condensation followed by heating?

Which of the following statements is not correct?

Which one is the correct order of acidity?

Extraction of gold and silver involves leaching with ${\text{CN}}^{-}$ ion. Silver is later recovered by:

The correct statement regarding electrophile is:

Consider the reactions:${\text{X(C}}_2{\text{H}}_6\text{O)}\stackrel{\text{Cu/573K}}{\to }\text{A}$$\text{A}\stackrel{[{\text{Ag(NH}}_3{)}_2{]}^{+},{\text{OH}}^{-}}{\to }\text{Silver mirror observed}$$\text{A}\stackrel{{\text{OH}}^{-},\Delta }{\to }\text{Y}$$\text{A}\stackrel{{\text{NH}}_2{\text{NHCONH}}_2}{\to }\text{Z}$ Identify A, X, Y, and Z.

The IUPAC name of the compound is:

Which is the incorrect statement?

A decrease in blood pressure/volume will not cause the release of:

Which of the following are not polymeric?

A baby boy aged two years is admitted to play school and passes through a dental check-up. The dentist observed that the boy had twenty teeth. Which teeth were absent?

Which of the following statements is correct?

Adult human RBCs are enucleate. Which of the following statement(s) is/are most appropriate explanation for this feature?(a) They do not need to reproduce(b) They are somatic cells(c) They do not metabolize(d) All their internal space is available for oxygen transport

An important characteristic that Hemichordates share with Chordates is:

Alexander Von Humboldt described for the first time:

Identify the wrong statement in context of heartwood:

Which one of the following statements is correct, with reference to enzymes?

Root hairs develop from the region of:

Among the following characters, which one was not considered by Mendel in his experiments on pea?

Which of the following facilitates opening of stomatal aperture?

The association of histone H1 with a nucleosome indicates:

DNA fragments are:

The process of separation and purification of expressed protein before marketing is called:

An example of colonial alga is:

Capacitation occurs in:

Select the mismatch:

Homozygous purelines in cattle can be obtained by:

The DNA fragments separated on an agarose gel can be visualised after staining with:

Double fertilization is exhibited by:

The water potential of pure water is:

Out of 'X' pairs of ribs in humans only 'Y' pairs are true ribs. Select the option that correctly represents values of X and Y:

DNA replication in bacteria occurs:

Which cells of 'Crypts of Lieberkuhn' secrete antibacterial lysozyme?

The hepatic portal vein drains blood to liver from:

In case of a couple where the male is having a very low sperm count, which technique will be suitable for fertilisation?

What is the criterion for DNA fragments movement on agarose gel during gel electrophoresis?

The function of copper ions in copper releasing IUD's is:

Spliceosomes are not found in cells of:

Which of the following cell organelles is responsible for extracting energy from carbohydrates to form ATP?

The pivot joint between atlas and axis is a type of:

GnRH, a hypothalamic hormone, needed in reproduction, acts on:

Which of the following represents order of 'Horse'?

Phosphoenol pyruvate (PEP) is the primary ${\text{CO}}_2$ acceptor in:

Which ecosystem has the maximum biomass?

A disease caused by an autosomal primary non-disjunction is:

The vascular cambium normally gives rise to:

Which of the following is correctly matched for the product produced by them?

Thalassemia and sickle cell anemia are caused due to a problem in globin molecule synthesis. Select the correct statement:

Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by:

Receptor sites for neurotransmitters are present on:

During DNA replication, Okazaki fragments are used to elongate:

Which of the following options best represents the enzyme composition of pancreatic juice?

Anaphase promoting complex (APC) is a protein degradation machinery necessary for proper mitosis of animal cells. If APC is defective in a human cell, which of the following is expected to occur?

The genotypes of a Husband and Wife are $I^A{I}^B$ and $I^{A}i$. Among the blood types of their children, how many different genotypes and phenotypes are possible?

Viroids differ from viruses in having:

Mycorrhizae are the example of:

The morphological nature of the edible part of coconut is:

Myelin sheath is produced by:

Match the following STDs (Column - I) with their causative agent (Column - II):(a) Gonorrhea (i) HIV(b) Syphilis (ii) Neisseria(c) Genital Warts (iii) Treponema(d) AIDS (iv) Human Papilloma virus

Which among these is the correct combination of aquatic mammals?

Coconut fruit is a:

A dioecious flowering plant prevents both:

Which of the following are found in extreme saline conditions?

Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen?

With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct?

Life cycle of Ectocarpus and Fucus respectively are:

The region of Biosphere Reserve which is legally protected and where no human activity is allowed is known as:

A gene whose expression helps to identify transformed cell is known as:

Which of the following components provides sticky character to the bacterial cell?

The final proof for DNA as the genetic material came from the experiments of:

Fruit and leaf drop at early stages can be prevented by the application of:

Which one of the following statements is not valid for aerosols?

Which of the following options gives the correct sequence of events during mitosis?

In Bougainvillea thorns are the modifications of:

If there are $999$ bases in an RNA that codes for a protein with $333$ amino acids, and the base at position $901$ is deleted such that the length of the RNA becomes $998$ bases, how many codons will be altered?

Transplantation of tissues/organs fails often due to non-acceptance by the patient's body. Which type of immune-response is responsible for such rejections?

Select the correct route for the passage of sperms in male frogs:

A temporary endocrine gland in the human body is:

Attractants and rewards are required for:

Functional megaspore in an angiosperm develops into:

Which of the following in sewage treatment removes suspended solids?

Presence of plants arranged into well defined vertical layers depending on their height can be seen best in:

Which of the following is made up of dead cells?

Zygotic meiosis is characteristic of:

MALT constitutes about ___________ percent of the lymphoid tissue in human body.

Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration because of:

In case of poriferans the spongocoel is lined with flagellated cells called:

Which one of the following is related to Ex-situ conservation of threatened animals and plants?

Which of the following RNAs should be most abundant in an animal cell?

Which statement is wrong for Krebs' cycle?

Hypersecretion of Growth Hormone in adults does not cause further increase in height, because:

Plants which produce characteristic pneumatophores and show vivipary belong to:

Asymptote in a logistic growth curve is obtained when:

Good vision depends on adequate intake of carotene rich food. Select the best option from the following statements:(a) Vitamin A derivatives are formed from carotene(b) The photopigments are embedded in the membrane discs of the inner segment(c) Retinal is a derivative of vitamin A(d) Retinal is a light absorbing part of all the visual photopigments

Artificial selection to obtain cows yielding higher milk output represents:

Frog's heart when taken out of the body continues to beat for some time. Select the best option from the following statements:(a) Frog is a poikilotherm(b) Frog does not have any coronary circulation(c) Heart is "myogenic" in nature(d) Heart is autoexcitable

Select the mismatch:

Which one from those given below is the period for Mendel's hybridization experiments?

Two astronauts are floating in gravitational free space after having lost contact with their spaceship. The two will:

Young’s double slit experiment is first performed in air and then in a medium other than air. It is found that $8^{\text{th}}$ bright fringe in the medium lies where $5^{\text{th}}$ dark fringe lies in air. The refractive index of the medium is nearly:

In a common emitter transistor amplifier the audio signal voltage across the collector is $3\text{V}$. The resistance of collector is $3\text{k}\Omega$. If current gain is $100$ and the base resistance is $2\text{k}\Omega$, the voltage and power gain of the amplifier is:

An arrangement of three parallel straight wires A, B, and C (carrying current $I$ in same direction) are placed perpendicular to the plane of paper. A and C are at a distance $d$ from B, and the angle $\angle ABC=90^{\circ }$. Magnitude of force per unit length on the middle wire ‘B’ is:

The de-Broglie wavelength of a neutron in thermal equilibrium with heavy water at a temperature $T$ (Kelvin) and mass $m$, is:

Radioactive material 'A' has decay constant '$8\lambda$ ' and material 'B' has decay constant '$\lambda$ '. Initially they have same number of nuclei. After what time, the ratio of number of nuclei of material 'B' to that 'A' will be $e$?

Two NOT gates are connected to the inputs of a NOR gate. The given electrical network is equivalent to:

The resistance of a wire is ‘$R$ ’ ohm. If it is melted and stretched to ‘$n$ ’ times its original length, its new resistance will be:

Two cars moving in opposite directions approach each other with speed of $22\text{m/s}$ and $16.5\text{m/s}$ respectively. The driver of the first car blows a horn having a frequency $400\text{Hz}$. The frequency heard by the driver of the second car is: (velocity of sound $340\text{m/s}$)

In an electromagnetic wave in free space the root mean square value of the electric field is $E_{\text{rms}}=6\text{V/m}$. The peak value of the magnetic field is:

Two rods A and B of same length and area but different materials are joined in parallel. Their thermal conductivities are $K_1$ and $K_2$. The thermal conductivity of the composite rod will be:

Which one of the following represents forward bias diode?

A $250$ -Turn rectangular coil of area $2.1\text{cm}\times 1.25\text{cm}$ carries a current of $85\mu \text{A}$ and is subjected to a magnetic field of $0.85\text{T}$. Work done for rotating the coil by $180^{\circ }$ from its stable equilibrium position is:

If ${\theta }_1$ and ${\theta }_2$ be the apparent angles of dip observed in two vertical planes at right angles to each other, then the true angle of dip $\theta$ is given by:

A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F, because the method involves:

The ratio of resolving powers of an optical microscope for two wavelengths ${\lambda }_1=4000\text{A˚}$ and ${\lambda }_2=6000\text{A˚}$ is:

A thin prism having refracting angle $10^{\circ }$ is made of glass of refractive index $1.42$. This prism is combined with another thin prism of glass of refractive index $1.7$. This combination produces dispersion without deviation. The refracting angle of the second prism should be:

A capacitor is charged by a battery. The battery is removed and another identical uncharged capacitor is connected in parallel. The total electrostatic energy of the resulting system:

Preeti reached the metro station and found that the escalator was not working. She walked up the stationary escalator in time $t_1$. On other days, if she remains stationary on the moving escalator, then the escalator takes her up in time $t_2$. The time taken by her to walk up on the moving escalator will be:

Match the following thermodynamic processes with their $P-V$ diagram characteristics:

One end of a string of length $l$ is connected to a particle of mass ‘$m$ ’ and the other end is connected to a small peg on a smooth horizontal table. If the particle moves in a circle with speed ‘$v$ ’, the net force on the particle (directed towards center) will be: ($T$ represents the tension in the string)

The two nearest harmonics of a tube closed at one end and open at the other end are $220\text{Hz}$ and $260\text{Hz}$. What is the fundamental frequency of the system?

The photoelectric threshold wavelength of silver is $3250\times 10^{-10}\text{m}$. The velocity of the electron ejected from a silver surface by ultraviolet light of wavelength $2536\times 10^{-10}\text{m}$ is nearly: (Given $h=4.14\times 10^{-15}\text{eVs}$ and $c=3\times 10^8{\text{ms}}^{-1}$)