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When dilute hydrochloric acid is added t...

When dilute hydrochloric acid is added to granulated zinc placed in a test tube, the observation made is:

A

The surface of the metal turns shining

B

the reactioin mixture turns milky

C

ordour of chlorine is observed

D

a colourless and odourless gas evolves with bubbles

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The correct Answer is:
D
NA
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LAKHMIR SINGH & MANJIT KAUR-PERIODIC CLASSIFICATION OF ELEMENTS-Exercise
  1. A non metal X which is the largest constituent of air combines with hy...

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  2. Solid sodium bicarbonate was placed on a strip of pH paper. The colour...

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  3. When dilute hydrochloric acid is added to granulated zinc placed in a ...

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  4. When an aluminium strip is kept immersed in freshly prepared ferrous s...

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  5. The description which most approximately suits sulphur dioxide gas is ...

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  6. Ethanoic acid was added in drops to water and it was noticed that :

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  7. A colourless liquid sample was tested with pH paper strip. The colour ...

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  8. Ehanoic acid was added to sodium hydrogencarbonate solution and the ga...

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  9. Which one of the following set ups is the most apropriate for the evol...

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  10. Four students A,B,C and D noted the initial colour of the solutions in...

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  11. Four gas jars filled with sulphur dioxide gas wer inverted into trough...

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  12. The colour of the pH strip turned red when it was dipped into a sample...

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  13. A drop of colourless liquid was placed on blue litmus paper. The litmu...

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  14. A piece of granulated zinc was dropped into copper sulphate solution. ...

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  15. When sulphur dioxide gas is passed throught acidified potassium dichro...

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  16. The odour of ethanoic acid resembles with :

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  17. Which of the following solutions would you use test the pH of a given ...

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  18. 5mL of dilute acetic acid were added to 5mL of water and the mixture w...

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  19. Four set ups a given below were arranged to identify the gas evolved ...

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  20. Which of the equipments would you choose to prepare and collect sulphu...

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