Chemistry Questions
Practice 161 Chemistry questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.
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Which metalloid in the carbon group is chemically similar to its group neighbours tin and silicon?
Who is known as the ‘Father of Indian Chemistry’?
How many hydrogen atoms are there in a molecule of acetylene?
Which compound is used to remove skins from tomatoes, potatoes and other fruits and vegetables for canning and as an ingredient in food preservatives, which helps prevent the growth of mold and bacteria in food?
Select the name of the hydrocarbon with a structural formula .
How many hydrogen atoms does a molecule of Phosphoric Acid contain?
Damaged CFLs and fluorescent tubes should be disposed off safely because they contain ______ vapour, which is toxic in nature.
Which of the following is a man-made fibre that was made without using any natural raw material (from plant or animal)? It was prepared from coal, water and air. It was the first fully synthetic fibre.
Sugarcane feedstock is readily fermented into ________.
which of the following figures represents Mendeleev's Periodic Table that was published in a German journal in 1872?
Which inert gas is used in double-glazed windows to fill the space between the panes?
Identify the number of electrons found in the outermost shell of a halogen atom.
What is the name of the non-benzenoid aromatic compound listed in the choices that contains a seven-membered ring with a ketone group, as referenced in the text?
Which of the following polyhalogen compounds is used in the production of the freon refrigerant R-22?
Which of the following pairs is correctly matched?
Who contributed in the development of the periodic table?
Which of the following substances is primarily responsible for acid rain?
What was the first element discovered by Marie and Pierre Curie?
How many hydrogen atoms does a molecule of acetic acid contain?
Which of the following chemicals is commonly used for preserving tomato sauces?
Compound responsible for temporary hardness of water is
The oxidation state of Iron in is
The catalyst used in Hydrogenation of oil is
NaHCO
3
is the chemical formula for _________.
3
is the chemical formula for _________.
There are some plastics which when moulded once, cannot be softened by heating. These are called:
Which among the following is NOT an example of synthetic fibres?
Which year was designated by UNESCO as the International Year of the Periodic Table (IYPT) to mark the 150th anniversary of the Mendeleev Periodic Table?
Magnetic Quantum number determines
Which of the following gives white precipitate, with ammoniacal silver nitrate solution ?
Which one of the following is not a natural fibre?
The percentage of nitrogen gas in the air is
Which one of the following non-metals is liquid?
The gas used in artificial ripening of green fruits is
Which of the following metals is not a mineral?
Which of the following is a greenhouse gas?
What is the reason of 'stone-cancer'?
Which one of the following is not a heterogeneous mixture?
A metal M does not liberate hydrogen from dilute acids but reacts with oxygen to give a black colour product. Identify M.
In which of the following compounds, the oxidation number of oxygen is ?
Which of the following has maximum number of atoms?
Mica is used in cooking utensils because it is
Which one of the following is not a heterogenous mixture?
A metal M does not liberate hydrogen from acids but reacts with oxygen to give a black colour product. Identify M.
Which of the following is not a constituent of petroleum?
Which of the following has the maximum number of atoms?
In which of the following compounds does oxygen have an oxidation number of +2?
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