List of practice Questions

An example for a neutral buffer is

Which of the following cations will have minimum flocculation value for arsenic sulphide sol ?

The stability of a Lyophobic colloid is due to

Mesomeric effect involves

In an unbiased $p-n$ junction, holes diffuse from the $p$-region to $n$-region because of

A wave travelling in the $+ve$ $x-direction$ having displacement along $y$-direction as $1m$, wavelength $2 \pi m$ and frequency of $ \frac{1}{\pi} Hz$ is represented by :

$XeF_2$ is isostructural with:

Which one of the following molecules contains no $\pi$ bond ?

Which of the following is a polar molecule ?

If the value of $C_0 + 2 \cdot C_1 + 3 \cdot C_2 + \dots+ (n+1) \cdot C_n=576$ ,then n is equal to

Eye of Octopus and eye of Cat show different patterns of structure. Yet they perform similar function. This is an example of

What is the density of $N_2$ gas at $227°C$ and 5.00 atm. pressure ? (R = 0.082 L Atm $K^{-1} mol^{-1}$)

Golgi complex plays a major role in

In an inducible operon, the genes are

Which enzyme's will be produced in a cell in which there is a nonsense mutation in the lac Y gene ?

Which of the following is not a property of the genetic code?

Hybridised states of carbon in Graphite and Diamond are respectively

In the circuit $R_1 = R_2$.The value of $E$ and $R_1$ are ________($E-EMF,R_1$-resistance)

A group of atoms can function as a ligand only when

An alkyl bromide $(X)$ reacts with Sodium in ether to form $4, 5$ -diethyl octane, the compound X is

Acetone and Propanal are

Which of the following is not a colligative property ?

The number of water molecules present in a drop of water weighing $0.018\, gm$ is

When limestone is heated, $CO_2$ is given off. The metallurgical operation is

Which of the following aqueous solutions will exhibit highest boiling point ?