Which of the following reagents will confirm the presence of unsaturation in a compound?

• A. Fehling's solution
• B. Bromine water
• C. Tollen's reagent
• D. Benedict's solution

What volume of CO_{2 at s.t.p would be obtained by reacting trioxocarbonate (IV) with excess acid? (G.M.V at s.t.p = 22.4 dm³)}

• A. 2.240 cm³
• B. 22.40 cm³
• C. 224.0 cm³
• D. 2240 cm³

What is the name of the process by which ammonia is produced on an industrial scale?

• A. Nitrogenation
• B. Ammoniation
• C. Nitrification
• D. Haber process

Which of the following gases is light than air?

• A. CO₂
• B. SO₂
• C. HCI
• D. NH₃

A solution of a salt X reacts with AgNO₃ solution to give white precipitate which dissolves in excess aqueous ammonia. X contains

• A. CI^-
• B. Pb²⁺
• C. SO^2-
• D. Zn²⁺

On evaporation to dryness, 250cm³ of saturated solution of salt X with relative molar mass 101 gave 50.5g of the. What is the soluility of the salt?

• A. 1.0 mol/dm³
• B. 20 mol/dm³
• C. 4.0 mol/dm³
• D. 5.0 mol/dm³

A mixture of sugar and sulphur can be separated by

• A) dissolution in water, evaporation and filtration
• B) filtration, evaporation and dissolution in water
• C) dissolution in water, filtration and evaporation
• D) evaporation, dissolution in water and filtration

Study the reaction represented by the equation: Alkanol + Alkanoic acid conc. H₂SO₄ Alkanoate + water. The type of process involved in the reverse reaction is

• A. Neutralization
• B. dehydration
• C. hydrolysis
• D. decomposition

Which of the following compounds has the lowest boiling point?

• A. C₄H₁₀
• B. CH₃COOH
• C. H₂O
• D. C₂H₅OH

90.0g of MgCI2 was placed in 50.0cm3 of water to give a saturated solubility of the salt is 8.0 mol dm3 at the same temperature, what is the mass of the salt left undissolved at the given temperature? (Mg = 24, Cl = 35.5)

• A. 52.0g
• B. 58.5g
• C. 85.5g
• D. 88.5g