List of practice Questions

Bessemer converter is used for the preparation of:

$Mg$ and $Li$ are similar in their properties due to:

Orthotropus ovule belongs to:

One solid sphere $A$ and another hollow sphere $B$ are of same mass and same outer radii. Their moment of inertia about their diameters are respectively $I_A$ and $I_B$ such that Where $d_A$ and $d_B$ are their densities

One mole of magnesium nitride on the reaction with excess of water gives

On a planet a freely falling body takes $2\,\sec$ when it is dropped from a height of $8\,m$ , the time period of simple pendulum of length $1\,m$ on that planet is:

Number of lone pair(s') in $XeOF_4$ is/are

Middle lamella mainly contains :

Mast cells of connective tissue contain

A body of mass $0.5 \,kg$ is projected under gravity with a speed of $98 \,m/s$ at an angle of $ 60^{\circ} $ with the horizontal. The change in momentum (in magnitude) of the body is

A body of mass $10 \,kg$ is moving with a constant velocity of $10 \,m/s$. When a constant force acts for $4 s$ on it, it moves with a velocity $2 \,m/s$ in the opposite direction. The acceleration produced in it is

A body of mass $M$ is kept on a rough horizontal surface [friction coefficient $=u$). A person is trying to pull the body by applying a horizontal force $F$ but the body is not moving then

A bullet of mass $m$ moving with velocity $v$ strikes a block of mass $M$ at rest and gets embedded into it. The kinetic energy of the composite block will be

The force constants of two springs are $ k_{1} $ and $ k_{2} $ respectively. Both are stretched till their potential energies are equal. The forces $ f_{1} $ and $ f_{2} $ applied on them are in the ratio

Lomasomes are found in:

Calculate $\Delta G^{o}$ for conversion of oxygen? To ozone $3 / 2 O _{2}(g) \rightarrow O _{3}(g)$ at $298 \,K$, if $K_{p}$ for this conversion is $2.47 \times 10^{-29}$ :

Lattice energy is calculated by :

Which of the following is correct?

The enthalpy change for the reaction of $50.00\, mL$ of ethylene with $50.00\, mL$ of $H_2 $ at $1.5\, atm$ pressure is $\Delta H=-0.31\, kJ$. The value of $\Delta E$ will be:

The structural formula of indigo dye is :

In which of the following kingdom diatoms are placed?

In the case of horse pulling a cart, the force that causes the horse to move forward is the force that :

Which of these contains vocal cords?

Which of the following glands is present in frog's skin and not in rabbit's skin?

How many kinds of cells are found in islets of Langerhans?