If n is a natural number, then exactly one of numbers n, n + 2 and n + 1 must be a multiple of

If the LCM of 12 and 42 is 10 m + 4 then the value of m is

If A = 2n + 13, B = n + 7 where n is a natural number then HCF of A and B

Given that LCM of (91, 26) = 182 then HCF (91, 26) is

The decimal expansion of 17/8 will terminate after how many places of decimals?

The decimal expansion of n is

If (97)³ × (4981)^2x-6 = (79)⁹ then value of x is

If HCF (a, b) = 12 and a × b = 1800 then LCM (a, b) is

If mⁿ = 32, where m and n are positive integers, then the value of (n)^mn is

For any positive integer a and b, there exist unique integers q and r such that a = 3q + r, where r must satisfy.

Which of the following gases can be used for storage of fresh sample of an oil for a long time?

Electrolysis of water is a decomposition reaction. The molar ratio of hydrogen and oxygen gases liberated during electrolysis of water is

When green coloured ferrous sulphate crystals are heated, the colour of the crystal changes because

Which of the following gases can be used for storage

The condition produced by aerial oxidation of fats and oils in foods marked by unpleasant smell and taste is called:

Select the oxidising agent for the following reaction:
H₂S + I₂ > 2HI + S

In the double displacement reaction between aqueous potassium iodide and aqueous lead nitrate, a yellow precipitate of lead iodide is formed. While performing the activity if lead nitrate is not available, which of the following can be used in place of lead nitrate?

Which of the following is an endothermic process?

MnO₂ + 4HCl → ₂ + 2H₂O + Cl₂
Identify the substance oxidized in the above . equation.

Magnesium ribbon is rubbed before burning because it has a coating of