Q.

statement-1: Aqueous solution of hydrogen peroxide is kept in glass or metal container containing some urea or phosphoric acid. 
Statement-2: Urea or phosphoric acid as a negative catalyst for the decomposition of hydrogen peroxide.

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a

Statement 1 and statement 2 are correct and statement 2 is the correct explanation of statement 1.

b

Statement 1 and statement 2 are correct but statement 2 is not correct explanation of statement 1.

c

Statement 1 is correct but statement 2 is false. 

d

Statement 1 is false but statement 2 is correct

answer is D.

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Detailed Solution

Kept in plastic or wax-lined glass containers containing urea or phosphoric acid, because traces of alkali metal ions from the glass and metal ions from the metal surface respectively can catalyse the explosive decomposition of   H2O2.

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