2025

(A) Fill in the blanks by choosing the appropriate word(s) from those given in the [4×1] brackets: [four, three, remains same, propane, ns1-2, increases, six, propan-2-ol, (n-1)d1-10, two, decreases, Clemmensen’s, Wolff-Kishner]
Given below are two statements marked Assertion and Reason. Read the two
statements carefully and select the correct option.
Assertion: Tertiary butyl bromide undergoes Wurtz reaction to give 2,2,3,3
tetramethyl butane.
Reason: In Wurtz reaction, when same alkyl halides react with sodium in dry
ether to give hydrocarbon; the hydrocarbon formed contains double
the number of carbon atoms present in the alkyl halide.

Both Assertion and Reason are true and Reason is the correct explanation of assertion.
Both Assertion and Reason are true but Reason is not the correct explanation for Assertion.
Assertion is true but Reason is false.
Both Assertion and Reason are false. ----------------------------------------------------------------------------------------------------------------

Specimen paper · 2025 · CollegeDekho (mirror of CISCE PDF)

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