Diagonal Relationship

Q.

List in tabular form three chemical properties on the basis of which we can differentiate between a metal and a non-metal?

Q. Which of following is true for both beryllium and aluminium ?

1. Forms oxide layer to prevent further oxidation
2. Forms chlorine-bridged structure in vapor phase
3. Have strong tendencies to form complexes
4. All of the above.

Q.

Which pair is different from the others?

1. Li – Mg

2. B – Si

3. Be – Al

4. Li – Na

Q. Both lithium and magnesium display several similar properties due to the diagonal relationship. However, the one which is incorrect is:

1. Both form soluble bicarbonates
2. Both from nitrides
3. Nitrates of both Li and Mg yield $N{O}_2$ and $O_2$ on heating
4. Both form basic carbonates

Q.

Diagonal relationship is shown by certain elements of period.

1. 3^rd and 4^th

2. 4^th and 5^th

3. 1^st and 2^nd

4. 2^nd and 3^rd

Q. What is the meaning of "neutron can penetrate the nuclei"?

Q.

Which of the following will liberate H${}_2$ when reacting with NaOH?

1. Be

2. Na

3. Al

4. Zn

Q. In ground state an element has 13 electrons in its M shell the element is ?

Q. Neutron was discovered by bombarding $\alpha$-particles on a thin sheet of

Q. 34. Can Sulphur exhibit isomorphism due to catenation

Q. The chemistry of lithium is very similar to that of magnesium even though they are placed in different groups. Its reason is

1. Both are found together in nature
2. Both have nearly the same size
3. Both have similar electronic configuration
4. The ratio of their charge and size (i.e charge density) is nearly the same

Q. SiCl4 is easily hydrolysed as compared to CCl4?Why?

Q. Do radioactive elements emit radiation all the time?