Please select a subject first
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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.]
Concept: undefined >> undefined
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].
Concept: undefined >> undefined
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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.
Concept: undefined >> undefined
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.
Concept: undefined >> undefined
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.
Concept: undefined >> undefined
Give balanced equation for the following conversion affected by heat alone on the substance:
Copper carbonate to copper oxide
Concept: undefined >> undefined
Give balanced equation for the following conversion affected by heat alone on the substance:
Hydrated copper sulphate to sulphur dioxide
Concept: undefined >> undefined
Give balanced equation for the following conversion affected by heat alone on the substance:
Copper nitrate to nitrogen dioxide
Concept: undefined >> undefined
Give balanced equation for the following conversion affected by heat alone on the substance:
Ammonium dichromate to nitrogen
Concept: undefined >> undefined
Give balanced equation for the following conversion affected by heat alone on the substance:
Zinc carbonate to zinc oxide
Concept: undefined >> undefined
Give balanced equation for the following conversion affected by heat alone on the substance:
Zinc nitrate to nitrogen dioxide
Concept: undefined >> undefined
Complete the table given below.
| Heat on iodine crystals | Colour of vapours evolved |
Concept: undefined >> undefined
Complete the table given below.
| Heat on ammonium dichromate | Name of neutral gas evolved |
Concept: undefined >> undefined
Complete the table given below.
| Heat on copper carbonate | Test for gas evolved |
Concept: undefined >> undefined
Complete the table given below.
| Heat on Zinc nitrate | Colour of residue |
Concept: undefined >> undefined
Complete the table given below.
| Addition of dil. H2SO4 to FeS | Odour of gas evolved |
Concept: undefined >> undefined
Complete the table given below.
| Addition of dil. H2SO4 to KHCO3 | Name of residue obtained |
Concept: undefined >> undefined
Complete the table given below.
| Addition of dil. H2SO4 to zinc | Test for gas evolved |
Concept: undefined >> undefined
Complete the table given below.
| Heat on sodium chloride | Colour imparted to flame during flame test |
Concept: undefined >> undefined
Complete the table given below.
| Flame test for calcium chloride | Acid used for flame test |
Concept: undefined >> undefined
