List of practice Questions

The equation; \(4\space _1^1H \rightarrow _4^2{He}^2+2e^-+26 MeV\)
Which of the following compounds does not dissolve in cone. $H_2S O_4$ even on warming?

Which one is the anhydride of \(HClO_4\)?

The current i in the circuit (see figure) is
A catalyst is a substance which
A hollow metal sphere of radius 5 cm is charged such that the potential on its surface is 10 V. The potential at the centre of the sphere is.
Beta rays emitted by a radioactive material are
Carbon tetrachloride has no net dipole moment because of
Hydrolysis of sucrose is called
When ethanal is treated with Fehling's solution, it gives a precipitate of
The value of the integral $ \int^{ \pi / 2 }_ 0 \frac {\sqrt { \cot \, x }}{ \sqrt { \cot \, x } + \sqrt { \tan \, x }} \, dx \, is $
The Cannizzaro's reaction is not given by
Principal quantum number of an atom is related to the
The value of tan $\bigg[cos^{-1}\bigg(\frac{4}{5}\bigg)+tan^{-1}\bigg(\frac{2}{3}\bigg)\bigg]$ is
Fifteen coupons are numbered 1, 2....... 15, respectively. Seven coupons are selected at random one at a time with replacement. The probability that the largest number appearing on a selected coupon is 9, is
The volume of the parallelopiped whose sides are given by $\overrightarrow{OA}=2\widehat{i}-3\widehat{j},\overrightarrow{OB}=\widehat{i}+\widehat{j}-\widehat{k},\overrightarrow{OC}=3\widehat{i}-\widehat{k}$ is
The equation of the circle passing through (1, 1) and the points of intersection of $x^2 + y^2 + 13x - 3y =0$ and $2x^2 + 2y^2 + 4 x - 7y -2 5 = 0$ is
Diethyl ether on heating with conc. HI gives two moles of
Any p-orbital can accommodate upto
An ideal monoatomic gas is taken round the cycle $ABCDA$ as shown in the P - V diagram (see figure). The work done during the cycle is
Acetamide is treated with the following reagents separately. Which one of these would yield methyl amine?
The domain of definition of the function $y = \frac{1}{\log{10} ( 1 -x)} + \sqrt{x + 2}$ is
Which of the following functions is periodic?
A thin circular ring of mass M and radius r is rotating about its axis with a constant angular velocity $\omega$. Two objects, each of mass m, are attached gently to the opposite ends of a diameter of the ring. The wheel now rotates with an angular velocity
A conducting circular loop of radius r carries a constant current i . It is placed in a uniform magnetic field $B_0$ such that $B_0$ is perpendicular to the plane of the loop. The magnetic force acting on the loop is