What is the quantity of electricity produced when a current of 0.5A is passed for 5 hours 45 mins? (F = 96500C)

• A) 0.11F
• B) 0.12F
• C) 0.22F
• D) 1.1F

The reaction that takes place in Daniell cell is

• A. direct combination
• B. redox
• C. double decomposition
• D. neutralization

A substance L reacts with NH₄NO₃(aq) to generate ammonia gas. L is likely to be

• A. HCl
• B. NaOH
• C. CH₃COOH
• D. CaSO₄

The method that can be used to convert hard water to soft water is

• A. chlorination
• B. passage over activated charcoal
• C. the use of an ion-exchange resin
• D. aeration

Inter-atomic combination involves the

• A) neutrons in the nucleus only
• B) protons in the nucleus only
• C) electrons in the outer shell only
• D) electrons in all the shells.

The density of a certain gas is 1.98gdm-3 at s.t.p. What is the molecular mas of the gas?

• A. 44.0 g
• B. 54.0 g
• C. 26.0 g
• D. 31.0 g

Which of the following compounds will undergo polymerization reaction?

• A) C2H4
• B) C2H5COOH
• C) C2H6
• D) C2H5OH

What happens when alkanoic acids react with alcohols in the presence of an acid catalyst?

• A. Saponification
• B. Esterification
• C. Polymerization
• D. Hydrolysis

The colour of litmus in a neutral medium is

• A) purple
• B) pink
• C) yellow
• D) orange

The ratio of the initial to final pressure of a given mass of gas is 1:1.5. Calculate the final volume of the gas if the initial volume was 300 cm³ at the same temperature

• A. 120 cm³
• B. 200 cm³
• C. 450 cm³
• D. 750 cm³