Why is it found experimentally difficult to detect neutrinos in nuclear `beta`-decay ?

Why has it been difficult to study the chemistry of Rn?

Why is it difficult to construct a conductor of capacitance 1F ?

Why is it difficult to soften food at hills?

Which of the following mutational events is most difficult to detect? 1. Lethal mutations 2. Dominant mutations 3. Recessive non lethal mutations 4. Auxotrophic mutations

Why is neutron used as an ideal particle for bombarding the nucleus of elements in a nuclear reaction ?

Why is the extractio of Cu from pyrites more difficult than that from its oxide ore through reduction?

Explain why it is very difficult to introduce the third -NO_2 group into the benzene ring.

Explain why Rutherford did not mention the present of neutron in the proposed nuclear model of atom?