Basic Concepts of Chemistry

Which is purified by steam distillation

Which is purified by steam distillation Options (a) Aniline (b) Benzoic acid (c) petroleum (d) Naphthalene Correct Answer: AnilineExplanation:Aniline is…

What is the number of mols of hydrogen atoms in 3.2g of methane

What is the number of mols of hydrogen atoms in 3.2g of methane Options (a) 0.2 (b) 0.4 (c) 0.8…

An equation is given as:SnO₂ + C → Sn + CO.Its balanced form will involve

An equation is given as:SnO₂ + C → Sn + CO.Its balanced form will involve Options (a) C and 2CO…

Which of the following compounds volatilises on heating

Which of the following compounds volatilises on heating Options (a) ZnCl₂ (b) HgCl₂ (c) MgCl₂ (d) None of these Correct…

If 18g of water is electrolysed then volume of oxygen obtained at STP is

If 18g of water is electrolysed then volume of oxygen obtained at STP is Options (a) 11.2 L (b) 2.8…

10g of hydrogen and 64g of oxygen were filled in a steel vessel and exploded.

10g of hydrogen and 64g of oxygen were filled in a steel vessel and exploded.Amount of water produced in this…

The number of atoms in 0.004g of magnesium will be

The number of atoms in 0.004g of magnesium will be Options (a) 24 (b) 10²⁰ (c) 96 (d) 6.2 x…

The compound which does not exist as hydrate form

The compound which does not exist as hydrate form Options (a) ferrous sulphate (b) copper sulphate (c) magnesium sulphate (d)…

The equivalent mass of Fe in FeO is

The equivalent mass of Fe in FeO is Options (a) 56 (b) 28 (c) 36 (d) 18.66 Correct Answer: 28Explanation:No…

The most suitable method of the separation of a 1:1 mixture of ortho-and para

The most suitable method of the separation of a 1:1 mixture of ortho-and para-nitrophenols is Options (a) filtration (b) sublimation…