10g of a solid is in equilibrium with its own vapour. When 1 g of a small amount of solid is added, the vapour pressure?

• A. remains the same
• B. drops
• C. increases by 1%
• D. increases by 99%

Which of the following processes involves neutralization?

• A. Hardening of oils
• B. Souring of milk
• C. Charring of sugar
• D. Liming of soil

A tertiary amine is

• A) ethylamine
• B) diethylamine
• C) triethylamine
• D) tetraethylarnine

Which of the following accounts for the difference in the mode of conduction of electricity by metals and aqueous salt solutions?

• A. Electrons are present in metals but not in salt solutions
• B. Metals are conductors while salts are electrolytes
• C. Electricity is carried by mobile elrctrons in metals but by ions is aqueous salt solution
• D. salts ionize in aqueous solutions while metals do not

What is the percentage yield of water if 0.90g of water is obtained when 29.0g of butane is burned in excess oxygen?

• A) 0.02%
• B) 0.20%
• C) 2.0%
• D) 10.0%

Metals of the first transition series have special properties which are different from those of groups I and II elements because they have partially filled

• A. s orbitals
• B. p orbitals
• C. d orbitals
• D. f orbitals

Which of the following processes is not exhibited by atoms in order to attain more stable electron configuration?

• A. Gaining of electrons
• B. Hybridization of orbitals
• C. Losing electrons
• D. Sharing electron

Which of the following statements is not correct about electrolysis?

• A. Reduction occurs at the anode
• B. Anions migrate to the anode
• C. Positive ions migrate to the cathode
• D. Concentration affects the discharge of ions

Which of the following compounds is a neutral oxide?

• A) Carbon (IV) oxide
• B) Sulphur (Vl) oixide
• C) Sulphur (IV) oxide
• D) Carbon (ll) oxide

An organic compound reacted with bromine water to give a colourless solution. The compound is probably an

• A) alkene
• B) alkanal
• C) alkyne
• D) alkanone