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When zinc metal is heated with caustic s...

When zinc metal is heated with caustic soda solution, the gas evolved is

A

hydrogen

B

carbon dioxide

C

oxygen

D

hydrogen chloride

Text Solution

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The correct Answer is:
A
NA
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LAKHMIR SINGH & MANJIT KAUR-PERIODIC CLASSIFICATION OF ELEMENTS-Exercise
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  6. Four students (A),(B),(C) and (D) observed the colour and solubility o...

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  7. A student adds a few drops of the universal indicator solution to a di...

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  8. A student strongly heats hydrated ferrous sulphate salt in a dry test-...

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  9. A student took four test tubes containing solutions of different colou...

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  10. A student while heating solid lead nitrate taken in a test tube would ...

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  11. Four students added a small amount of ethanoic acid to sodium hydrogen...

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  12. A student was given an unknown solution in a test tube. When he added ...

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  13. A student placed a few drops of a liquid over a portiin of the red lit...

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  14. A student was asked to carry out a chemical reaction by placing four d...

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  15. When a student added universal indicator solution to one of the follow...

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  16. A student prepared hydrogen chloride gas by treating sodium chloride w...

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  17. When a student added a few drops of barium chloride solution to sodium...

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  18. A student placed a pinch of solid sodium hydrogencarbonate on a strip ...

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