11.

Which of the following is not a typical property of an ionic compound?

• High melting point

• Conducts electricity in the molten and in the aqueous solution state.

• They are insoluble in water

• They are insoluble in water

Choose the most appropriate answer from the following options:

Which of these will act as a non-electrolyte?

• Liquid carbon tetrachloride

• Acetic acid

• Sodium hydroxide aqueous solution acid

• Sodium hydroxide aqueous solution acid

Choose the most appropriate answer from the following options:

Which one of the following will not produce an acid when made to react with water?

• Carbon monoxide

• Carbon dioxide

• Nitrogen dioxide

• Nitrogen dioxide

Identify the metallic oxide which is amphoteric in nature:

• Calcium oxide

• Barium oxide

• Zinc oxide

• Zinc oxide

The metals zinc and tin are present in the alloy:

• Solder

• Brass

• Bronze

• Bronze

Choose the most appropriate answer to form the following options:

Nitrogen gas can be obtained by heating:

• Ammonium nitrate

• Ammonium nitrite

• Magnesium nitride

• Magnesium nitride

Choose the most appropriate answer for  the following option:

Identify the statement that is incorrect about alkanes:

• They  are hydrocarbons.

• There is a single covalent bond between carbon and hydrogen

• They can undergo both substitutions as well as addition reactions.

• They can undergo both substitutions as well as addition reactions.

Identify the following  substance which is underlined:

The element which has the highest ionisation potential.

Give suitable chemical terms for the following;

A bond formed by a shared pair of electrons with both electrons coming from the same atom. 

Compare the compounds carbon tetrachloride and sodium chloride with regard to solubility in water and electrical conductivity.