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प्रश्न
A chemical change may involve –
पर्याय
change in colour only
change in temperature only
evolution of gas only
any or all of the above
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उत्तर
any or all of the above
Explanation:
A chemical change may involve a change in colour, temperature, smell or evolution of gas, heat, etc.
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\[\ce{NH3_{(g)} + HCl_{(g)} -> NH4Cl_{(s)}}\]
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