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Characterstic reactions for four differe...

Characterstic reactions for four different substances are given below. Arrange the tests in the order of the substances given below. (i) `P_(2)O_(5)`
(ii) `CO_(2)`
(iii) `O_(2)`
(iv) `SO_(2)`
(a) Passage through potassium dichromate turns green.
(b) Dissolution in water gives tribasic acid.
(c ) Non-supporter of combustion but allows active metals continue to burn.
(d) Turns alkaline pyrogallol brown.

A

2 4 31

B

2 3 4 1

C

4 1 3 2

D

4 3 1 2

Text Solution

Verified by Experts

The correct Answer is:
B
(i) `P_2O_5` on dissolution in water gives phosphoric acid. (ii) `CO_2` is a non-supporter of combustion, but allows burning of active metals. (iii) Oxygen turns alkaline pyrogallol brown. (iv) `SO_2` when passed through potassium dichromate turns the solution from orange to green.
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