S- And p-Block ...

Match the column – I (element) with column – II (use) and select the correct option.

In which of the following does the solubility in water increase down the group?

I. Alkaline earth metal hydroxides
II. Alkaline earth metal carbonates
III. Alkaline earth metal sulphates

Which of the following statements are FALSE?

1. Compounds of alkaline earth metals are less hydrated than those of alkali metals.
2. Quicklime exhibits thermoluminescence.
3. Aqueous solution of calcium hydroxide is known as milk of lime.
4. Oxide and hydroxide of beryllium are amphoteric in nature.

Which of the following alkaline earth metals crystallize in face centered cubic structure?
1. Beryllium
2. Magnesium
3. Calcium
4. Strontium
5. Barium

Which of the following metals do not impart characteristic colour to oxidizing flame?

Which of the following terms statements are TRUE?
P. All alkali metal elements form solid hydrogen carbonates.
Q. Calcium is fifth most abundant element in the earth's crust.
R. Francium is highly radioactive.
S. Hydration enthalpies of alkaline earth metal ions are larger than those of alkali metal ions.

Which of the following statements regarding alkaline earth metals is/are incorrect?

1. All alkaline earth metal oxides are basic.
2. All alkaline earth metal hydrides are ionic.
3. Stability of peroxides of alkaline earth metals increases down the group.
4. The thermal stability of alkaline earth metal hydroxides increases down the group.

Li resembles Mg mainly due to similarity in sizes of their atoms and ions. The main points of similarity are:

i. Both LiOH and Mg(OH)₂ are strong bases.
ii. Carbonates of both, on heating, decompose to produce oxides and carbon dioxide.
iii. Both react with nitrogen to give covalent nitrides.
iv. Both Li and Mg form solid bicarbonates.
v. LiCl and MgCl₂ are soluble in ethanol.
vi. The hydroxides, bicarbonates and fluorides of both Li and Mg are sparingly soluble in water.

Which of the following statement are true?

1. Melting points of alkaline earth metals are greater than those of alkali metals.
2. All alkali metal carbonates are stable at a temperature around 800^oC.
3. Carbonates of alkali metals are more stable to heat than carbonates of alkaline earth metals.

Which of the following elements are radioactive?

1. Cesium
2. Barium
3. Radium
4. Francium
5. Rubidium