List of practice Questions

When a point object is seen by an observer through a glass slab, the image is:

Which of the following is not correctly matched?

The relationship between acetylene and benzene can be compared with the relationship of propyne with:
The radius of the third Bohr orbit is $ 4.77\text{ }\overset{\text{o}}{\mathop{\text{A}}}\,. $ The radius of the second orbit will be:
The geometry of $ {{[Cu{{(N{{H}_{3}})}_{4}}]}^{2+}} $ ion is:
Seven white balls and three black balls are randomly placed in a row. The probability that no two black balls are placed adjacently, equals
Reduction of nitrobenzene in the presence of $ \text{Zn/N}{{\text{H}}_{\text{4}}}\text{Cl} $ gives:
On a cold morning, a metal surface will feel colder to touch than a wooden surfaces, because
Addisons disease results from :
A subshell with $ l=2, $ can take up a maximum of ... electrons:
A ray of light travelling in a transparent medium falls on a surface separating the medium from air at an angle of incidence $45^\circ$. The ray undergoes total internal reflection. If n is the refractive index of the medium with respect to air, select the possible value (s) of n from the following
A new carbon-carbon bond formation is possible in
Which of the following is not correctly matched?
Which of the following is the most stable alkene?
Which of the following is the main cause of late discovery of neutron?
Which one of the following is used to make ??on-stick??cookware?
Which one of the following shows maximum paramagnetic character?
Woollen clothes keep the body warm, because wool
Two coils have a mutual inductance 0.005 H. The current changes in the first coil according to equation $I = I_0 sin \omega t, \, $ where $I_0= 10 A $ and $ \omega= 100 \pi$ rad/sec. The maximum value ofe.m.f. in the second coil is
The transfer ratio $\beta$ of a transistor is $50$. The input resistance of the transistor when used in the common-emitter configuration is $1 k\Omega$ The peak value of the collector A.C. current for an A.C. input voltage of 0.01 V peak is
The skull of frog and rabbit is:
The SI unit of the inductance, the henry can by written as
The reaction, $ {Benzene + methyl \,halide ->[Anhy.AlCl_3]Toluene,}$ is known as
The rain drops are spherical in shape due to
The product obtained when acetic acid is treated with phosphorus trichloride, is