Consider the following statements:
1. Nuclear reactions involve changes in the nucleus of an atom.
2. The rate of a nuclear reaction is increased by the addition of a catalyst.
3. A nuclear reaction is unaffected by the chemical state of the atoms involved.
4. Nuclear reactions of the same elements vary according to the isotope involved.
Which of the statement(s) about nuclear reactions given above is/are correct?
Consider the following statements:
1. Nuclear reactions involve changes in the nucleus of an atom.
2. The rate of a nuclear reaction is increased by the addition of a catalyst.
3. A nuclear reaction is unaffected by the chemical state of the atoms involved.
4. Nuclear reactions of the same elements vary according to the isotope involved.
Which of the statement(s) about nuclear reactions given above is/are correct?
The correct option is C 1,3 and 4
1. Nuclear reactions involve changes in the nucleus
of an atom.
2. The rate of a nuclear reaction is increased by
the addition of a catalyst.
3. Nuclear reactions of the same elements vary
according to the isotope involved.
statement(s) about nuclear reactions given above
are correct.
1. Nuclear reactions involve changes in the nucleus
of an atom : Nuclear reactions involve a change in an atom's nucleus, usually
producing a different element. Chemical reactions, on the other hand, involve
only a rearrangement of electrons and do not involve changes in the nuclei. (2)
Different isotopes of an element normally behave similarly in chemical
reactions.
2. The rate of a nuclear reaction is increased by
the addition of a catalyst : Catalysts increase the rate of reaction without
being used up. They do this by lowering the activation energy needed. With a
catalyst, more collisions result in a reaction, so the rate of reaction
increases. Different reactions need different catalysts.
3. Nuclear reactions of the same elements vary
according to the isotope involved : Nuclear reactions involve a change in an
atom's nucleus, usually producing a different element. Chemical reactions, on
the other hand, involve only a rearrangement of electrons and do not involve
changes in the nuclei.
1. Nuclear reactions involve changes in the nucleus of an atom.
2. The rate of a nuclear reaction is increased by the addition of a catalyst.
3. Nuclear reactions of the same elements vary according to the isotope involved.
statement(s) about nuclear reactions given above are correct.
1. Nuclear reactions involve changes in the nucleus of an atom : Nuclear reactions involve a change in an atom's nucleus, usually producing a different element. Chemical reactions, on the other hand, involve only a rearrangement of electrons and do not involve changes in the nuclei. (2) Different isotopes of an element normally behave similarly in chemical reactions.
2. The rate of a nuclear reaction is increased by the addition of a catalyst : Catalysts increase the rate of reaction without being used up. They do this by lowering the activation energy needed. With a catalyst, more collisions result in a reaction, so the rate of reaction increases. Different reactions need different catalysts.
3. Nuclear reactions of the same elements vary according to the isotope involved : Nuclear reactions involve a change in an atom's nucleus, usually producing a different element. Chemical reactions, on the other hand, involve only a rearrangement of electrons and do not involve changes in the nuclei.
