List of practice Questions

The focal length of the field lens (which is an achromatic combination of two lenses) of a telescope is $90$ cm. The dispersive powers of the two lenses in the combination are $0.024$ and $0.036$.The focal lengths of the two lenses are

The coordination number of a central metal atom in a complex is determined by

Sex chromosomes are also known as:

Select the $pK_a$ value of the strongest acid from the following :

Schleiden and Schwann proposed :

Schleiden (1838) proposed that cell is the structural and functional unit of life. His idea was a

Mohrs salt is

Radio frequency choke has core of

The plant cell does not have a ____

The de-Broglie wavelength $ \lambda $ :

Which of these have no unit?

Oxidation number of carbon in $CH_2Cl_2$ is

How will your separate mixture of two gases?

Oral contraceptives are prescribed in females to check :

On mixing ethyl acetate with aqueous sodium chloride, the composition of the resultant solution is

Of the following which change will shift the reaction towards the product? $I_2(g) \rightleftharpoons 2I(g) $ $\Delta H^{\circ} (298\, K) = +150\, kJ$

Nif genes occur in

Mendelian recombinations are due to:

Lorentz force is given by the following formula

A fighter plane is moving in a vertical circle of radius $r$. Its minimum velocity at the highest point of the circle will be

Which one of the following enzymes initials protein digestion?

Haemoglobin is having maximum affinity with

Down's syndrome is

The pungent odour of faeces is due to ne presence of

Which type of cells secretes $ HCl$ in stomach'