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22nd January 2025 chemistry pyq

Q1.

A solution of aluminium chloride is electrolysed for 30 minutes using a current of 2A. The amount of aluminium deposited at the cathode is ___.
[Given: molar mass of aluminium = 27 g mol-1, Faraday constant = 96500 C mol-1]

Q2.

Which of the following statement is not true for radioactive decay?





Q3.

How many different stereoisomers are possible for the given molecule?
CH3–CH(OH)–CH=CH–CH3





Q4.

Which of the following electronegativity order is incorrect?





Q5.

Lanthanoid ions with 4f7 configuration are:
(A) Eu2+ (B) Gd3+ (C) Eu3+ (D) Tb3+ (E) Sm2+





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