Preparations and Reactions of Sodium Oxide

Q. Select the odd one out and justify your answer​
Fe, Zn, Cu and Mg​

Q. Sodium nitrate decomposes above $-{800}^{o}C$ to give
(IIT-JEE, 1998)

1. $N_2$
2. $O_2$
3. $N{O}_2$
4. $N{a}_{2}O$

Q. Ion of element ‘X’ combines with an oxide ion and forms ​XO. The compound formed when the ion of ‘X’ combines ​with a chloride ion is: ​

1. $XC{l}_2$
2. $XC{l}_4$
3. $XCl$
4. $X_{4}Cl$

Q.

Bleaching powder can be prepared by reacting:

1. Caustic soda with chlorine

2. Washing soda with chlorine

3. Baking soda with chlorine

4. Slaked lime with chlorine

Q. The compound(s) formed upon combustion of sodium metal in excess air is/are
(IIT-JEE, 2009)

1. $N{a}_2{O}_2$
2. $N{a}_{2}O$
3. $Na{O}_2$
4. NaOH