List of top Chemistry Questions

Electronic configurations of Mg+2 ion and Cl– ion are
Coordination number of Na+ in NaCl crystal is
Bonds present in Nitrogen molecule are
\(1s^2, 2s^2, 2p^6, 3s^2, 3p^6\) configuration is related to
The number of electrons gained by non-metal element is equal to its
Corrosion of copper produces
22-carat Gold contains
Formula of Rust is
Chemical used to remove impurities from ore is called
Atomic number of the element of VA group, coming after nitrogen is
Identify the element that belongs to 2nd group and 3rd period.
Identify the correct statement.
Identify the structure of propyne
functional group indicatesfunctional group indicates
Ethyl alcohol upon oxidation produces
Which of the following are called paraffins?
Ethene and ethyne differ in
Cough Syrup contains
Formulae for Nessler's reagent is:
Delicate balance of \(CO_2\) and \(O_2\) is not disturbed by:
Some drugs bind to a site other than, theactive site of an enzyme This site is knownas
Most stable product of the following reaction is:

Decreasing order of the hydrogen bonding in following forms of water is correctly represented by
A. Liquid water
B. Ice
C. Impure water 
Choose the correct answer from the options given below:

Match List I with List II

List IList II
APhysisorptioniSingle Layer Adsorption
BChemisorptionii20−40kJmol−1
CN2​(g)+3H2​(g)—⇢Fe(s)—⇢​2NH3​(g)iiiChromatography
DAnalytical Application or AdsorptionivHeterogeneous catalysis

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The water quality of a pond was analysed and its BOD was found to be 4. The pond has