Q361
Open questionWhich of the following is not true about manganese?
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Chemistry GK · all questionsMetal and Its Compounds
Metal and Its Compounds
practice.
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Q362
Open questionWhich of the following mixtures is used to purify Gold?
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Q363
Open questionThe most commonly used substance in fluorescent tubes are
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Q364
Open questionWhich of the following is the use of sodium carbonate, which is an alkali?
1. Producing sodium compounds such as borax.
2. To remove permanent hardness of water.
3. Use in glass, soap and paper industries.
1. Producing sodium compounds such as borax.
2. To remove permanent hardness of water.
3. Use in glass, soap and paper industries.
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Q365
Open questionWhich is used in storage batteries?
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Q366
Open questionAcidity can be cured by taking . . . . . . . . by a person.
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Q367
Open questionWhich one of the following materials contains calcium?
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Q368
Open questionWhat is the colour of precipitates formed when carbon dioxide passes through a solution of calcium hydroxide?
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Q369
Open questionGalena is the ore of . . . . . . . .
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Q370
Open questionWhat is the common name for Calcium hydroxide solution?
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Q371
Open questionWhich of the following is not a form of Calcium Carbonate?
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Q372
Open questionMatch List-I with List-II and select the correct answer:
| List-I (Naturally occurring substance) | List-II (Elements present) |
| a. Diamond | 1. Calcium |
| b. Marble | 2. Silicon |
| c. Sand | 3. Aluminium |
| d. Ruby | 4. Carbon |
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Q373
Open questionZinc can separate copper from copper sulphate solution, because zinc-
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Q374
Open questionGold is soluble in which of the following:
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Q375
Open questionSodium calcium silicate is called . . . . . . . .
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Q376
Open questionChoose odd from the following.
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Q377
Open questionHow many water molecules are present in a molecule of ferrous sulphate crystal?
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Q378
Open question. . . . . . . . atoms are present in sodium carbonate molecule.
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Q379
Open questionWhat is the chemical formula of bleaching powder?
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Q380
Open questionWhich of the following reactions removes the highly reactive metals from the pure molten ore?
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