List of top Chemistry Questions

Which of the following pairs give positive Tollen's test?

The methods chiefly used for the extraction of lead and tin from their ores are respectively

The compound having tetrahedral geometry is

Spin only magnetic moment of the compound $Hg[Co(SCN)_4] $ is

Acetaldehyde cannot show

A sodium salt of an unknown anion when treated with $ MgCl_2 $ gives white precipitate only on boiling. The anion is

2-Hexyne gives trans-2-hexene on treatment with

Which of the following has -O-O- linkage?

Spontaneous adsorption of a gas on solid surface is an exothermic process, because

$(NH_4)_2Cr_2 O_7$ on heating gives a gas which is also given by

When $I^-$ is oxidised by $MnO_4^-$ in alkaline medium, $I^-$ converts into

The correct statement(s) for orthoboric acid is/'are

Yellow phosphorus is kept in:

Which of the following forms molecular solid?

Which of the following acids is monobasic?

What is obtained, when potassium succinate solution is electrolysed?

The pH of $10^{-8}M\,NaOH$ is:

The shape of an orbital is determined by:

Oxidation number $Fe$ in $K_{3}[Fe(CN)_{6}]$ is:

Which of the following order of ionization energy is correct?

The following compound cannot exhibit: $CH_{3}CH=CH-CH(OH)\cdot COOH$

Which is the shortest wavelength line in the Lyman series of the hydrogen spectrum? $\left(R=1.097 \times 10^{-2} nm ^{-1}\right)$

$CH_{3}CHCl_{2}$, on hydrolysis, will give:

Which of the following, is a mordant dye?

The coal tar fraction which contains phenol is :