(English Medium) ICSE Class 9 - CISCE Question Bank Solutions for Chemistry

Calculate the following:

The volume at s.t.p. occupied by a gas “Y” originally occupying 760 cc. at 300K and 70 cm. press, of Hg.

Calculate the following:

The volume at s.t.p. occupied by a gas ‘Z’ originally occupying 1.57 dm³ at 310.5K and 75 cm. press. of Hg.

Calculate the following:

The volume at s.t.p. occupied by a gas ‘Q’ originally occupying 153.7 cm³ at 287K and 750 mm. pressure [vapour pressure of gas ‘Q’ at 287K is 12 mm of Hg.]

Calculate the following:

The temperature to which a gas ‘P’ has to be heated to triple it’s volume, if the gas originally occupied 150 cm³ at 330K [pressure remaining constant].

On heating which of the following substances i.e. copper carbonate, zinc carbonate, washing soda, copper sulphate, zinc nitrate, copper nitrate, lead nitrate, ammonium chloride and ammonium dichromate – relate to the reaction given below.

A white solid which evolves two colourless gases which on cooling combine and condense on the cooler parts of the test tube.

On heating which of the following substances i.e. copper carbonate, zinc carbonate, washing soda, copper sulphate, zinc nitrate, copper nitrate, lead nitrate, ammonium chloride and ammonium dichromate – relate to the reaction given below.

A coloured substance which leaves on strong heating a black residue and evolves two colourless gases one of which is acidic and the other neutral.

On heating which of the following substances i.e. copper carbonate, zinc carbonate, washing soda, copper sulphate, zinc nitrate, copper nitrate, lead nitrate, ammonium chloride and ammonium dichromate – relate to the reaction given below.

A coloured substance which leaves a black residue and evolves two gases one of which is acidic and coloured and the other neutral and colourless.

Give balanced equation for the following conversion affected by heat alone on the substance:

Copper carbonate to copper oxide

Give balanced equation for the following conversion affected by heat alone on the substance:

Hydrated copper sulphate to sulphur dioxide

Give balanced equation for the following conversion affected by heat alone on the substance:

Copper nitrate to nitrogen dioxide

Give balanced equation for the following conversion affected by heat alone on the substance:

Ammonium dichromate to nitrogen

Give balanced equation for the following conversion affected by heat alone on the substance:

Zinc carbonate to zinc oxide

Give balanced equation for the following conversion affected by heat alone on the substance:

Zinc nitrate to nitrogen dioxide

Complete the table given below.

Complete the table given below.

Complete the table given below.

Complete the table given below.

Complete the table given below.

Complete the table given below.

Complete the table given below.