List of top Chemistry Questions

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion : tert-Butyl amine can be formed by Gabriel phthalimide synthesis. 

Reason : It follows \(SN_1\) mechanism.

In the light of the above statements, choose the correct answer from the options given below

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion : \(m\)-Bromotoluene can be prepared from \(m\)-toluidine. 

Reason : Amino group is \(meta\)-directing.

In the light of the above statements, choose the correct answer from the options given below

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion : Two sugar units are joined by 1,2-glycosidic bond in sucralose. 

Reason : Sucralose contains \(C_1\) -glucose and \(C_2\) - fructose glycosidic bond.

In the light of the above statements, choose the correct answer from the options given below
 

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion : Glyceraldehyde reacts with \(Br_2/ H_2O\) to form achiral compound. 

Reason : \(-CHO\) and \(-CH_2OH\) both are oxidised.

In the light of the above statements, choose the correct answer from the options given below

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion : Lyophilic colloid protects lyophobic colloid. 

Reason : Lyophilic colloid particles cover up the particles of the lyophobic colloid.

In the light of the above statements, choose the correct answer from the options given below

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion: \((CH_3)_2NH\) is less basic than \((CH_3)_3N\) in aqueous solution. 

Reason : Hyperconjugation in \((CH_3)_2NH\) is more than that in \((CH_3)_3N\).

In the light of the above statements, choose the correct answer from the options given below

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion : tert-Butyl methyl ether reacts with \(HBr\) to form fert-butyl bromide and methanol. 

Reason : It follows \(S_N1\) mechanism.

In the light of the above statements, choose the correct answer from the options given below

The following graph shows how $(t_{1/2})$ a (half life) of a reactant R changes with the initial reactant concentration $a_0$. The order of the reaction will be
Which of the following is the correct IUPAC name of the following structure
Kelvin equation is related to
\(\:\xrightarrow[\Delta]{DIBAL-H}\:\) Product, Product is :
Select the correct statement regarding shapes of $PCl_5, BrF_5$ and $IF_7$.
One mole of $O_2$ gas is heated at constant pressure starting at $27^o$C. How much energy must be added to the gas as heat to double its volume?
Magnesium is burnt in air to form $A$ and $B$. When $B$ is hydrolysed, $C$ and $D$ are formed. $D$ is the reactant in the manufacture of nitric acid by Ostwald's process. What is $C$
Correct order of basic strength is :
Calculate emf of cell at 25?C Cell notation $M\left|M^{2+}_{0.01}\right|\left|M^{2+}_{0.00001}\right|M$ If value of E is 4 volt (Given $\frac{RT}{F}$ in 10 = 0.06)
Which of the following statements about $CO_3^{2-}$ ion is correct?
Which of the following transition elements have melting point below $500^\circ$ C?
Which will release $NH_3$ on Reaction with $NaOH$.
Which of the following are formula of methanides? $Be_2C$ $CaC_2$ $Mg_2C_3$ $Al_4C_3$
Which is the chemical test for polysaccharide
Which alkali metal during flame test will show colour corresponding to maximum wavelength?
Silicon carbide is an example of :
Oxidation state of copper is +1 in
Order of acidic nature