Which of the following are the properties of an electron?

1. Electron is a constituent of cathode ray.

2. Electron is a negatively charged particle.

3. The mass of the electron is equal to the mass of the proton.

4. Electron is deflected by the electric field but not by magnetic field.

Select the correct answer using the codes given below.

Which of the following statements regarding heavy water are correct?

1. It is extensively used as a moderator in nuclear reactors.

2. It cannot be used in exchange reaction to study reaction mechanism.

3. Viscosity of heavy water is relatively smaller than that of ordinary water.

4. The dielectric constant of heavy water is smaller than that of ordinary water.

Select the correct answer using the codes given below.

Match List I with List II and select the correct answer using the codes given below the Lists.

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Graphite is a much better conductor of heat and electricity than diamond. This is due to the fact that each carbon atom in graphite