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A boy accidently splashes a few drops of...

A boy accidently splashes a few drops of `conc. H_2 SO_4` on his cotton shirt and splashed part blackens and holes appears. This is because the sulphuric acid

A

heats up the cotton

B

removes the elements of water from cotton

C

causes the cotton to react with water

D

dehydrates the cotton with burning .

Text Solution

Verified by Experts

The correct Answer is:
B
Sulphuric acid removes the element of water from cotton.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-P-BLOCK ELEMENTS -Exercise 2
  1. In the long form of the periodic table the valence shell electronic co...

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  2. Concentrated nitric acid upon long standing turns yellowish-brown due ...

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  3. A boy accidently splashes a few drops of conc. H2 SO4 on his cotton sh...

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  4. The oxoacids of S having -S-S- bond is/are I. H(2)S(2)O(4) II....

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  5. When HCl reacts with finely powdered iron, it forms ferrous chloride a...

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  6. Consider H(3)PO(2),H(3)PO(3),H(3)PO(4) and H(4)P(2)O(7) . Which of the...

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  7. Draw the structure of BrF(3).

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  8. Liquor ammonia bottles are opened only after cooling. This is becaus...

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  9. Consider the following statement . I. XeOF(4) has square pyramidal s...

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  10. Ammonia forms the complex [Cu(NH3)4]^(2+) with copper ions in alkaline...

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  11. The ease of liquefaction of noble gases increases in the order

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  12. H2S reacts with O2 to form

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  13. On heating NH(4)NO3 strongly which is obtained ?

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  14. Sulphuric acid reacts with PCl5 to give

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  15. The type of bonds present in sulphuric anhydride

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  16. Elements of group 15 form compounds in +5 oxidatin state. However, bis...

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  17. When conc. HNO(3) is heated with P(2)O(5), it forms

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  18. In the laboratory H2S gas is prepared by using black lumps and dil. H...

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  19. When conc. H(2)SO(4) is heated with P(2)O(5), the acid is converted to

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  20. Sulphur does not exist as S2 molecule because

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