List of practice Questions

Nuclear holocaust means

Number greater than 1000 but less than 4000 is formed using the digits 0, 1, 2, 3, 4 (repetition allowed). Their number is

Number of angular nodes for $4d$ orbital is _________.

Normal range of urea in 100ml of human blood is

Now-a-days India is under which stage of demographic cycle ?

Nucellus of an ovule is equivalent to a

NOR gate is the series combination of

Normal at $(1, 1)$ on the curve $2y=9-x^2$ is

Noble gases are sparingly soluble in water due to

No force is exerted by a magnetic field on a stationary :

Noble gases are also known as aerogens because

Nitrogen is used to fill electric bulbs because

$Nm^{-1}$ is the SI unit of

No current is drawn from the secondary of an ideal transformer, the power factor of the primary coil is

Nitrogen and hydrogen combine to form ammonia under high temperature and pressure conditions. This is an example of

Nitrogen combines with metals to form

Nitrogen forms stable $N_2$ molecule but phosphorus is converted to $P_4$ from $P_2$ because

Nitrates are converted into Nitrogen by

Nitric oxide acts as a reducing agent in the reaction

Nitrobenzene can be prepared from benzene by using a mixture of conc. $ {HNO_3}$ and conc. $ {H_2SO_4}$ in the mixture, nitric acid acts as a/an :

$NH_4OH$ is a weak base but it becomes still weakerin the aqueous solution of

Nickel is purified by thermal decomposition of its

$NH_3$ and $BF_3$ form adduct readily because they form

$NH_3$ has a much higher b.p. than $PH_3$ because

Nervous tissue is made up of neurons and neuroglial cells. Which of the following statements about these two cells is/are false? (i) Neuroglia make up more than one-half the volume of neural tissue in our body (ii) Neuroglia protect and support neurons (iii) When a neuron is suitably stimulated, an electrical disturbance is generated which swiftly travels along its cytosol (iv) Arrival of the disturbance at the neuron's endings triggers stimulation or inhibition of adjacent neurons or other cells