List of top Chemistry Questions

Which of the following molecules is paramagnetic?
The particles in the sol formed by addition of dilute aqueous solution of AgNO3 to the excess dilute aqueous solution of KI are
CO2CH3 KCN D- -Br D -CH=CO,CH EtOH H CN
The configuration of the reactant and the product in the above reaction, respectively, are
Among the above components, the correct order of enol content is
Among the above components, the correct order of enol content is
Arrange the following compounds in increasing order of acidity.
Correct order of stability of the following carbocations is-
stability of the following carbocations is- CH3 CH2CH3 H2C CH CH3 (+ H2C CH2 H2C
For diatomic molecules, the correct statement(s) about the molecular orbitals formed by the overlap to two $2 p_z$ orbitals is(are)
Consider the following reaction 
Carius method
On estimation of bromine in $100 \,g$ of $R$ using Carius method, the amount of $AgBr$ formed (in $g$ ) is __ [Given : Atomic mass of $H =1, C =12, O =16, P =31, Br =80, Ag =108$ ]
Which of the following shows Frenkel's defect?
The correct option(s) related to the extraction of iron from its ore in the blast furnace operating in the temperature range $900-1500 K$ is(are)
Treatment of D-glucose with aqueous NaOH results in a mixture of monosaccharides, which are
The compound(s) which react(s) with $NH _3$ to give boron nitride (BN) is(are)
Among the following, the correct statement(s) about polymers is(are)
Considering the following reaction sequence, the correct statement(s) is(are)
Compound P and Q are carboxylic acids
The number of $- CH _2$ - (methylene) groups in the product formed from the following reaction sequence is_____
methylene
Dissolving $1.24 \,g$ of white phosphorous in boiling $NaOH$ solution in an inert atmosphere gives a gas $Q$ The amount of $CuSO _4$ (in g) required to completely consume the gas $Q$ is ___ [Given : Atomic mass of $H =1, O =16, Na =23, P =31, S =32, Cu =63$ ]

When the excited electron of a H atom from n = 5 drops to the ground state, the maximum number of emission lines observed are ____.

While estimating the nitrogen present in an organic compound by Kjeldahl’s method, the ammonia evolved from 0.25 g of the compound neutralized 2.5 mL of 2 M H2SO4. The percentage of nitrogen present in organic compound is ________

The reaction of HClO3 with HCl gives a paramagnetic gas, which upon reaction with O3 produces

The reaction of HClO3 with HCl gives a paramagnetic gas, which upon reaction with O3 produces

Consider the following reaction 
Carius method
On estimation of bromine in $100 \,g$ of $R$ using Carius method, the amount of $AgBr$ formed (in $g$ ) is __ [Given : Atomic mass of $H =1, C =12, O =16, P =31, Br =80, Ag =108$ ]
Dissolving $1.24 \,g$ of white phosphorous in boiling $NaOH$ solution in an inert atmosphere gives a gas $Q$ The amount of $CuSO _4$ (in g) required to completely consume the gas $Q$ is ___ [Given : Atomic mass of $H =1, O =16, Na =23, P =31, S =32, Cu =63$ ]
The reduction potential \(\left(E^0, in\ V\right)\) of \(MnO _4^{-}( aq ) / Mn ( s )\) is\(\left[ Given : E_{\left( MnO _4^-( aq ) / MnO _2( s )\right)}^0=1.68 V ; E_{\left( MnO _2( s )/ Mn ^{2+}( aq )\right)}^0=1.21 V ; E_{\left( Mn ^2( aq ) / Mn ( s )\right)}^0=-1.03 V \right]\)
The correct option(s) related to adsorption processes is(are)
In the above reaction product B is:
In the above reaction product B is:
Product B is