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Read the following statements and choose the correct option. (1) Calcium is present in the bones of animals and human beings as sulphate. (2) Heating calcium carbonate to 1070K-1270K gives quick lime. (3) Aluminum is not affected by dry air. |
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(a) |
Only(1) and (3) are true |
(b) |
Only (1) and (2) are true |
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(c) |
Only (2) and (3) are true |
(d) |
All are true |
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Read the following statements and choose the correct option. (1) Calcium is present in the bones of animals and human beings as sulphate. (2) Heating calcium carbonate to 1070K-1270K gives quick lime. (3) Aluminum is not affected by dry air. |
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(a) |
Only(1) and (3) are true |
(b) |
Only (1) and (2) are true |
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(c) |
Only (2) and (3) are true |
(d) |
All are true |