Reactivity Trends (Group 2)

Q.

7. Write the chemical name of the following compound.

(g) $\mathrm{HgO}$

Q. Magnesium combines with nitrogen to form a nitride, which reacts with water to form a colourless gas. The gas is:

1. $N{H}_3$
2. $N_{2}O$
3. $NO$
4. $N{O}_2$

Q.

The order of stability of the following carbocations :

is :

1. II > III > I

2. I > II > III

3. III > I > II

4. III > II > I

Q. is amphoteric in nature

1. $Mg(OH{)}_2$
2. $Be(OH{)}_2$
3. $Ca(OH{)}_2$

Q.

Which of the following compounds is a peroxide?

1. $K{O}_2$

2. $Ba{O}_2$

3. $Mn{O}_2$

4. $N{O}_2$

Q.

Among Alkaline earth metals, the element predominantly forming covalent compounds is:

1. Ba

2. Sr

3. Ca

4. Be

Q. Which of the following is an amphoteric hydroxide?

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1. $Ca(OH{)}_2$
2. $Be(OH{)}_2$
3. $Sr(OH{)}_2$
4. $Mg(OH{)}_2$