Mortar is a mixture of water sand and
1). Slaked lime
2). Quick lime
3). Limestone
4). Gypsum
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1. Which mineral is the ore Of aluminium?
2. The noble gas used in radiotherapy is
3. The Chemical formula of Aluminium Chloride is _____.
4. Green house effect is accelerated by
5. Which gas is used for converting vegetable oils into saturated fats ?
6. Ozone depletion in the stratosphere is mainly caused by
7. The gas which is mainly responsible for the green house effect is:
8. The biogas used for cooking is a mixture of which of the following?
9. The wire of flash bulbs is made up of
10. The charcoal used to decolourise brown sugar solution is