The add used in lead storage cells is
1). phosphoric acid
2). hydrochloric acid
3). nitric acid
4). sulphuric acid
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2. Cloud is a colloidal dispersion of
3. Which of the following elements has the lowest melting point?
4. Question 5.4:Why is it necessary to remove CO when ammonia is obtained by Haber’s process?
5. The Bhopal tragedy was caused by the gas
6. Natural rubber is the polymer of: