List of practice Questions

The portal system seen in all vertebrates is:

Anastral mitosis is the characteristic of:

The equivalent weight of Mohrs salt is:

The value of $ I{{E}_{1}},\,I{{E}_{2}},\,I{{E}_{3}},\,I{{E}_{4}} $ and $ I{{E}_{5}} $ of an element are 7.1, 14.3, 34.5, 46.8 and 162.2 eV respectively. The element is likely to be:

To what radioactive family does $ P{{b}^{207}} $ belongs?

When the same amount of Al is treated with an excess of $ HCl $ and $ NaOH $ , the volumes of hydrogen evolved are in the ratio of:

The element with the highest first ionization potential is:

Which of the following has the smallest size?

Which of the following is not true? An element, with high electronegativity is, generally:

Ortho and para hydrogen:

The superior type of laboratory apparatus are made of:

An electric motor exerts a force of 40 N on a cable and pulls it by a distance of 30 m in one minute. The power supplies by the t motor will be:

Water potential in the leaf tissue is positive (+) during

The effective capacitance between the points $A$ and $B$ in the circuit shown in $(\mu F)$ is (capacitance of each capacitor is$(\mu F)$

Maximum and minimum values of the resultant of two forces acting at a point are $7\, N$ and $3\, N$ respectively. Then smaller force is equal to

The focal length of a plano convex lens is equal to its radius of curvature. The value of the refractive index of its material is

The normal magnifying power of a simple microscope is 6. The focal length of the convex lens uses is

Which of the following statement is correct?

Which one of the following vitamins can be synthesized by bacteria inside the gut?

Magnetic field due to a long straight conductor of length, carrying current at a point distance from it, is given by

The cyanide ion $CN^-$ and $N_2$ are isoelectronic, but in contrast to $CN^-$ , $N_2$ is chemically inert because of

The IUPAC name of(CH3)2CH - CH2 - CH2Br is

In reference to biological role, $Ca^{2+}$ ions are important in

In a locality, two-thirds of the people have cable TV, one-fifth have VCR, and one-tenth have both. What is the fraction of people having either cable-TV or VCR?