List of top Chemistry Questions

Given below are two statements : 
Statement I: Aspirin and Paracetamol belong to the class of narcotic analgesics. 
Statement II: Morphine and Heroin are non-narcotic analgesics. 
In the light of the above statements, choose the correct answer from the options given below
Which one of the following methods can be used to obtain highly pure metal which is liquid at room temperature?

Which one of the following polymers is prepared by addition polymerization

An organic compound contains 78% (by wt.) carbon and the remaining percentage of hydrogen. The right option for the empirical formula of this compound is : [Atomic wt. of C is 12, H is 1]

Ethylene diaminetetraacetate (EDTA) ion is

The correct sequence of bond enthalpy of ‘C–X’ bond is

The reagent ‘R’ in the given sequence of chemical reaction is

The intermediate compound ‘X’ in the following chemical reaction is

Match List - I with List - II.

List - I

List - II

(a)[Fe(CN)6]3−(i)5.92 BM
(b)[Fe(H2O)6]3+(ii)0 BM
(c)[Fe(CN)6]4−(iii)4.90 BM
(d)[Fe(H2O)6]2+(iv)1.73 BM

Choose the correct answer from the options given below.

The molar conductivity of 0.007 M acetic acid is 20 S cm2 mol−1. What is the dissociation constant of acetic acid? Choose the correct option. 

In which one of the following arrangements the given sequence is not strictly according to the properties indicated against it

The slope of Arrhenius Plot (ln k v/s \(\frac{1}{T}\)) of first order reaction is −5×103 K. The value of Ea of the reaction is. Choose the correct option for your answer. [Given R=8.314 JK−1mol−1 ]

The dihedral angle of the least stable conformer of ethane is

BF3 is planar and electron-deficient compound. Hybridization and the number of electrons around the central atom, respectively are

Identify the compound that will react with Hinsberg’s reagent to give a solid which dissolves in alkali

Among the following alkaline earth metal halides, one which is covalent and soluble in organic solvents is

The maximum temperature that can be achieved in blast furnace is

Match List - I with List - II.

List - I

List - II 

(a)(i)Hell-VolhardZelinsky reaction
(b)(ii)Gattermann-Koch reaction
(c)(iii)Haloform reaction 
(d)(iv)Esterification

Choose the correct answer from the options given below.

Tritium, a radioactive isotope of hydrogen, emits which of the following particles?

The right option for the statement “Tyndall effect is exhibited by”, is

The incorrect statement among the following is

What is the IUPAC name of the organic compound formed in the following chemical reaction? 

Which of the following molecules is non-polar in nature

Which of the following reactions is the metal displacement reaction? Choose the right option.

Match List - I with List - II.  

List - IList - II
(a) 2SO2 (g)+O2 (g) →2SO3(i) Acid rain 
(b)HOCl(g) h\(^\nu\)→OH+Cl(ii) Smog
(c)CaCO3+H2SO4→CaSO4+H2O+CO2(iii)Ozone
(d)NO2(g) \(^{h\nu}\)→NO(g)+O(g)(iv) Tropospheric

Choose the correct answer from the options given below.