List of practice Questions

Study the following pie-charts carefully to answer these questions. Percentage of Students in a College, Studying Various Subjects and the Percentage of Girls out of these.

The equivalent resistance between the points $X$ and $Y$ in the following circuit diagram will be

The order of electron affinity of halogens is

A long solenoid has 500 turns. When a current of 2 ampere is passed through it, the resulting magnetic flux linked with each turn of the solenoid is $4 \times 10^{-3}$ Wb. The self-inductance of the solenoid is

Electrolysis of dilute aqueous $NaCl$ solution was carried out by passing $10\, mA$ current. The time required to liberate $0.01\, mole$ of $H_2$ gas at the cathode is $(1 \,F\,= 96500 \,C \,mol^{-1})$

The correct statement(s) about the compound given below is/are

The number of permutations of 4 letters that can be made out of the letters of the word EXAMINATION is

The enthalpies of combustion of carbon and carbon monoxide are $ -393.5 $ and $ -283\,\text{kJ}\,\text{mo}{{\text{l}}^{-1}} $ respectively. The enthalpy of formation of carbon monoxide per mol is

What is the equilibrium expression for the reaction, $ {{P}_{4}}(s)+5{{O}_{2}}(g) \rightleftharpoons {{P}_{4}}{{O}_{10}}(s)? $

Which of the following is an algal parasite ?

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion (A): A bird perches on a high power line and nothing happens to the bird.
Reason (R): The level of bird is very high from the ground.
In the light of the above statements, choose the correct answer from the options given below

When a wire is subjected to a force along its length, its length increases by 0.4% and its radius decreases by 0.2%. Then the Poissons ratio of the material of the wire is

The volumes of two $ \text{HCl} $ solutions A(0.5 N) and B(0.1 N) to be mixed for preparing 2 L of 0.2 N HCl solution are

The most active phagocytic white blood cells are

A plant endemic to India is

Plasmids are extrachromosomal DNA present in

Quercus species are the dominant component in

When 0.1 mole of an acid is added to 2 L of a buffer solution, the pH of the buffer decreases by 0.5. The buffer capacity of the solution is

Which one of the following reactions occur at the cathode?

AB is an ionic solid. If the ratio of ionic radii of $ {{\text{A}}^{\text{+}}} $ and $ {{\text{B}}^{-}} $ is 0.52, what is the coordination number of $ {{\text{B}}^{-}} $ ?

Which one of the following reactions is an example of auto-catalysis?

The electronic configuration $1 s^{2},\, 2 s^{2} 2 p^{6},\, 3 s^{2} 3 p^{6} 3 d^{9}$ represents a

Unusual high boiling point of water is result of