The number of molecules which gives haloform test among the following molecules is
Arrange the following in decreasing acidicstrength
In a reaction,
reagents ' X ' and ' Y ' respectively are :
Amongst the following, the major product of the given chemical reaction is
Given below are two statements:
Statement I: The esterification of carboxylic acid with an alcohol is a nucleophilic acyl substitution.
Statement II: Electron withdrawing groups in the carboxylic acid will increase the rate of esterification reaction.
Choose the most appropriate option
The number of paramagnetic species among the following is ____B2,Li2,C2,C-2, O22--,O2+ and He2+
Ka for butyric acid (C3H7COOH) is 2 × 10–5. The pH of 0.2 M solution of butyric acid is ______× 10–1. (Nearest integer) (Given log2 = 0.30)
For the given first order reaction A → B, the half-life of the reaction is 0.3010 min. The ratio of the initial concentration of reactant to the concentration of reactant at time 2.0 min will be equal to ______. (Nearest integer)
Given below are two statements one is labelled as Assertion A and the other is labelled as Reason R:
Assertion A: The amphoteric nature of water is explained by using Lewis acid/base concept
Reason R: Water acts as an acid with NH3 and as a base with H2S.
In the light of the above statements choose the correct answer from the options given below:
In the given reaction
‘A’ can be
The major product formed in the following reaction, is
Given below are two statements.
Statement I : Phenols are weakly acidic.
Statement II : Therefore they are freely soluble in NaOH solution and are weaker acids than alcohols and water.
Choose the most appropriate option.
can be subjected to Wolff-Kishner reduction to give
into 
