List of top Chemistry Questions

The bond order and magnetic property of acetylide ion are same as that of

A metal chloride contains 55% by mass of chlorine. 100 mL of vapours gives 0.57 gm of chlorine at STP. Calculate the molecular mass of metal chloride. (Nearest integer)

Which one of the following elements will remain as liquid inside pure boiling water?

Methylamine reacts with HNO₂ to form?

Number of isomeric aromatic amines with synthesized by Gabriel Phthalimide synthesis molecular formula C₈H₁₁N, which can be is ______. jee main 2023

In an ice crystal, each water molecule is hydrogen bonded to ___ neighbouring molecules

The number of colloidal systems from the following, which will have 'liquid' as the dispersion medium, is____.
Gem stones, paints, smoke, cheese, milk, hair cream, insecticide sprays, froth, soap lather.

The strongest acid from the following is

During the detection of Lead, the Formation of which of the following compounds is not used as a confirmatory test.

IUPAC name of the compound \(K_{3}[Co(C_{2}O_{4})_{3}]\) is

Given below are two statements: One is labelled as "Assertion A" and the other is labelled as "Reason R".
Assertion A: In the complex Ni(CO), and Fe(CO)s, the metals have zero oxidation state.
Reason R: Low oxidation states are found when a complex has ligands capable of π-donor character in addition to the o-bonding.
In the light of the above statements, choose the most appropriate answer from the option given below.

The compound which does not exist.

The volume of HCl, containing $73 g L^{−1}$, required to completely neutralise NaOH obtained by reacting $0.69 g$ of metallic sodium with water, is _______ mL.( Nearest Integer)
(Given : molar Masses of Na, Cl, O, H, are 23,35.5,16 and 1 $g mol^{−1}$ respectively)

Which of the following free radicals helps in depletion of the ozone layer?

Prolonged heating of ferrous ammonium sulphate is avoided to prevent :

How many of the following statements are correct:

In which of the following options the species changes from paramagnetic to diamagnetic and bond order increases.

On heating, $LiNO_3$ gives how many compounds among the following?
$Li_2O,N_2,O_2,LiNO_2,NO_2 $

The concentration of dissolved Oxygen in water for growth of fish should be more than 𝑋 ppm and Biochemical Oxygen Demand in clean water should be less than 𝑌 ppm. X and Y in ppm are, respectively.

Read the following two statements:
Statement I: Potassium dichromate is used in volumetric analysis.
Statement II: \(K_2Cr_2O_7\) is more soluble in water than \(Na_2Cr_2O_7\)

The major component of which of the following ore is sulphide based mineral?

The octahedral diamagnetic low spin complex among the following is

The enthalpy change for the adsorption process and micelle for mation respectively are