Match The FollowingMatch the following:
| A. Acid salt | (i) Ferrous ammonium sulphate |
| B. Double salt | (ii) Contains only ions |
| C. Ammonium hydroxide solution | (iii) Sodium hydrogen sulphate |
| D. Ammonium hydroxide solution | (iv) Contains only molecule |
| E. Carbon tetrachloride | (v) Contain ion and molecules |
| A. The alloys contain Cu and Zn, is hard silvery and is used in decorative articles. | (i) Duralumin |
| B. It is stronger than Aluminium light and is used in making light tools. | (ii) Brass |
| C. It is lustrous hard, corrosion resistant and used in surgical instruments. | (iii) Bronze |
| D. It is lustrous hard, corrosion resistant and used in surgical instruments. | (iv) Stanless steel |
| E. The alloys is hard brittle, takes up polish and is used = for making statues. | (v) Solder |
One Word AnswersThere are three elements E, F, G with atomic number 19, 8 and 17 respectively.
i) Classify the elements as metals and non-metals.
ii) Give the molecular formula of the compound formed between E and G and state the type of chemical bond in this compound.
Name the gas in each of the following ;
A gas which turns acidified potassium dichromate clear green.
Identify the anion present in the following compounds:
Compound X on heating with copper turning and concentrated sulphuric acid liberates a reddish brown gas.
Identify the anion present in the following compounds:
when a solution of compounds Y is treated with silver nitrate solution a white precipitate is obtained which is soluble in excess of ammonium hydroxide solution.
Identify the anion present in the following compounds:
Compounds Z which on reacting with dilute sulphuric acid liberates a gas which turns lime water milky, but the gas has no effect on acidified potassium dichromate solution.
Identify the anion present in the following compounds:
Compound L on reacting with Barium chloride solution gives a white precipitate insoluble in dilute hydrochloric acid or dilute nitric acid.
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