Test – 2 (VIII Std)
Name-_______________________________ Marks: 25m
1) State the valency and formula of the following radicals or ions :
(i) Ammonium (ii) Barium (iii) Zincate (iv) Hydroxide
2) Write the formula of the following salts :
(i) Ammonium sulphate (iii) Lead hydroxide
(ii) Sodium nitrate (iv) Magnesium nitride.
3) Write the names of the following compounds?
(i) Pb(NO3)2 (ii) Mg(HCO3)2 (iii) (NH4)2S (iv) KClO
4) Give the names of the following :
(i) NH4OH (ii) HNO2 (iii) HCl (iv) H2CO3
5) XCl2 is the chlorides of metal X. write down the formulae of sulphide and acetate of X.
6) Molecular weight of the compound is 20x and empirical formula is CH. What is its molecular formula?
7) Write the molecular weight of the following compounds :
(i) Calcium carbonate (ii) Magnesium hydroxide (iii) Zinc nitrate


VIII IITChemistry Test-2 (09/07/07) Page 1 of 1
PARAMITA SCHOOLS
Mankammathota, Karimnagar
Name-_______________________________ Marks: 25m
1) State the valency and formula of the following radicals or ions :
(i) Ammonium (ii) Barium (iii) Zincate (iv) Hydroxide
2) Write the formula of the following salts :
(iii) Ammonium sulphate (iii) Lead hydroxide
(iv) Sodium nitrate (iv) Magnesium nitride.
3) Write the names of the following compounds?
(i) Pb(NO3)2 (ii) Mg(HCO3)2 (iii) (NH4)2S (iv) KClO
4) Give the names of the following :
(i) NH4OH (ii) HNO2 (iii) HCl (iv) H2CO3
5) XCl2 is the chlorides of metal X. write down the formulae of sulphide and acetate of X.
6) Molecular weight of the compound is 20x and empirical formula is CH. What is its molecular formula?
7) Write the molecular weight of the following compounds :
(i) Calcium carbonate (ii) Magnesium hydroxide (iii) Zinc nitrate
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