NEET 2019 Exam Paper (Odisha) (180 Q) - Mock Test

In the reaction ${\text{CH}}_3\text{C}\equiv \text{CH}\stackrel{\text{Red hot iron tube, }873\text{K}}{\to }A$. The number of ($\sigma$) bonds present in the product (A) is:

Match the oxide given in Column I with its property given in Column II:Column I: (i) ${\text{Na}}_2\text{O}$, (ii) ${\text{Al}}_2{\text{O}}_3$, (iii) ${\text{N}}_2\text{O}$, (iv) ${\text{Cl}}_2{\text{O}}_7$ Column II: (a) Neutral, (b) Basic, (c) Acidic, (d) Amphoteric

A first-order reaction has a rate constant of $2.303\times 10^{-3}{\text{s}}^{-1}$. The time required for $40\text{g}$ of this reactant to reduce to $10\text{g}$ will be: [Given ${\log }_{10}2=0.3010$ ]

A reagent that can distinguish cis-cyclopenta-1,2-diol from the trans-isomer is:

The vapor of secondary alcohol passed over heated copper at $573\text{K}$ yield: