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Which forces are responsible for dissolving polar substances in water?
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How addition of Na2CO3 removes permanent hardness of water?
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What is the principle of removing permanent hardness of water?
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Explain the chemistry of removing the temporary hardness by boiling water.
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Which salts are responsible for hardness of water?
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How pesticides cause water pollution?
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What is function of fertilizers?
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How decaying plants consume oxygen?
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Why use of detergents is increasing day by day?
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How water used as a cleaning agent in industries causes pollution?
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What is an industrial waste?
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Explain why non-ionic polar compounds are soluble in water?
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Why water molecule is polar?
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