Inorganic Chemistry
Organic Chemistry
Haloalkanes and Haloarenes
MCQ (Single Correct Answer)Subjective
Alcohols, Phenols and Ethers
MCQ (Single Correct Answer)Subjective
Aldehydes, Ketones and Carboxylic Acids
MCQ (Single Correct Answer)Subjective
1
CBSE 12th Chemistry Delhi Set 1 - 2024
Subjective
+2
-0

Show that in case of a first order reaction, the time taken for completion of $99 \%$ reaction is twice the time required for $90 \%$ completion of the reaction. $(\log 10=1)$

2
CBSE 12th Chemistry Delhi Set 1 - 2023
Subjective
+2
-0

What happens to the rate constant $$k$$ and activation energy $$E_a$$ as the temperature of a chemical reaction is increased? Justify.