List of practice Questions

A bicyclist comes to a skidding stop in $10\, m$. During this process, the force on the bicycle due to the road is $200\, N$ and is directly opposed to the motion. The work done by the cycle on the road is

Due to atmospheric refraction effects, the day becomes longer by

A ball is thrown horizontally from a height of $ 100\, m $ with an initial speed of $ 15\,m \,s^{-1} $ . How far does it travel horizontally in the first $ 2 $ seconds ?

Which wave, or ray is produced due to decelerating or accelerating charged particles ?

An example of non-stoichiometric hydride is

The following reactions show the $ H_{2}O_{2} $ behaviour in I and II reactions as: I. $ PbS(s) + 4 H_{2}O_{2} (aq) \to PbSO_{4}(s) + 4H_{2}O(l) $ II. $ HOC1 + H_{2}O_{2} \to H_{3}O^{+} + Cl^{-} + O_{2} $

What will be the half-cell potential of a hydrogen electrode acting as an anode and dipped in a solution of $ pH = 2 $ ?

Which of the following groups of plants have underground stems?

Which of the following is correct for Lactose?

Which of the following is substitution reaction?

Which of the following is not aromatic heterocyclic?

Which of the following is the correct order for ease of dehydration-

Which of the following species of plant is considered as the world?s most problematic aquatic weed ?

What proves that light is a transverse wave?

What is role of sterol in cell membrane?

The primary of a transformer has 400 turns while the secondary has 2000 turns. If the power output from the secondary at 1000 V is 12 kW, what is the primary voltage?

The number of S?S bonds in SO, SO$^{2}_{3}$ SO$^{2}_{6}$ and SO$^{2}_{8}$ respectively are

R. of malic acid

If the X-ray tube is working at 20 kV then the minimum wavelength of X-rays will be

Hugo de Vries gave his mutation theory on organic evolution while working on

Histamine is secreted by

Gibberellin was first extracted from

Formation of corpus luteum is induced by

Find pH of 0.1 M NaOH solution.

Few cnidarians like corals have a skeleton composed of