List of top Chemistry Questions

Explain the bonding in coordination compounds in terms of Werner’s postulates.

Write IUPAC names of the following compounds and classify them into primary, secondary and tertiary amines. 

(i) (CH3 )2CHNH2 (ii) CH3 (CH2 )2NH2 (iii) CH3NHCH(CH3 )2 

(iv) (CH3 )3CNH2 (v) C6H5NHCH3 (vi) (CH3CH2 )2NCH3 (vii) m–BrC6H4NH2

Which one of the following is tridentate ligand?
Laughing gas is prepared by heating
Number of oxalic acid molecules in $100\, mL$ of $0.02\, N$ oxalic acid are
Which of the following is an antihistamine drug?
Cyclopentadienyl anion is aromatic in nature. Cyclopentadienyl anion has six $\pi$ electrons.
Rusting of iron is catalysed by
An alkyl halide reacts with metallic sodium in dry ether. The reaction is known as :
Vicinal and geminal dihalides can be distinguished by
What is the velocity of electron present in first Bohr orbit of hydrogen atom?
In a reaction $2 A+B \longrightarrow 3 C$, the concentration of $A$ decreases from $0.5\, mol \,L \,^{-1}$ to $0.3\, mol\, L^{-1}$ in $10$ minutes. The rate of production of $C$ during this period is
The bond length of HCl molecule is $1.275 \, ?$ and its dipole moment is 1.03 D. The ionic character of the molecule (in percent) (charge of electron $4.8 \times 10^{-10}$ esu) is
All are primary pollutants except
Which one of the following is an outer orbital complex and exhibits paramagnetic behaviour?
What process is used to make soap from fat?
F-centres in an ionic crystal are
How many oxygen atoms will be present in $88\, g$ of $CO_2$

If \((1+\frac{1}{x})^{\frac{1}{2}}\) \(v_{av} = v_{rms}\), then x is:

The pH value of N/10 NaOH is

Which of the following gives maximum energy in metabolic process?

$[Fe(CN)_6 ]^{3-}$ ion is
Fluorine molecule is formed by
Ionic bonds are directional in nature whereas covalent bonds are non-directional. According to orbital overlap concept, the formation of a covalent bond between two atoms results by pairing of electrons present in the valence shell having same spins.
...................is a potent vasodilator