NaOH, KOH, CuSO4.5H2O, MgSO4.7H2O, NaCl, K2SO4
If Ram added the above salts in different test tube with water, he felt some of the test tube becomes warm. Number of warm test tubes could be ___
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Explanation:
koh , cuso4.5h2o , mgso4.7h2o , k2so4
because their are acidic in nature and become warm
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