List of practice Questions

Ammonia is commercially prepared by
Water falls from 100 metre height. What will be temperature rise per kg of water due to fall?
\(g = 10 \, \text{m/s}^2\), specific heat of water = 4200 Joule/kg°C
Modulus of rigidity of a liquid is
A sphere of 150 kg is kept on frictionless surface. A bullet of 0.15 kg mass with velocity 200 m/sec strikes the sphere and stops. After collision the velocity of sphere will be
Electrical conductivity of a semiconductor
Which of the following is not a nitrogenous fertilizer?
Which one of the following is the standard for atomic mass?
Balance the equation
\[ {}^9_4\text{Be} + {}^4_2\text{He} \rightarrow {}^6_12\text{C} + \cdots \]
The material of permanent magnet has
Gobar gas contains mainly
Accepting the definition that an acid is a proton donor, the acid in the following reaction
\[ NH_3 + H_2O \rightleftharpoons NH_4^+ + OH^- \] is
The order of radius of the nucleus of an atom is
An aqueous solution of Ferric chloride is
The number of neutrons in \(^{238}U\) is
Number of moles in 180 grams of water is
The metal which is found in the native state is
If velocity of light in air is \(3 \times 10^8\) m/s and that in water is \(2 \times 10^8\) m/s, then what would be the critical angle?
A man can see upto 5 metre clearly. To see clear upto 10 m, the focal length of lens will be
A cycle tyre bursts suddenly. This represents an
Soils of Western Rajasthan have a high content of
How many electrons an atom have in M shell whose atomic number is 19?
The volume of a gas at 1140 mm of Hg pressure and 546°C temperature is 150 litre. The volume of gas at S.T.P. will be
Two springs with spring constants \(K_1 = 1500 \, \text{N/m}\) and \(K_2 = 3000 \, \text{N/m}\) are stretched by the same force. The ratio of potential energy stored in spring will be
Length of a rod increases 0.2% on increasing the temperature by 100°C. The value of coefficient of linear expansion of material of rod is
Work done during the expansion of a gas from a volume of \(4 \, \text{dm}^3\) to \(6 \, \text{dm}^3\) against a constant external pressure of 3 atm is (1 L atm = 101.32 J)