Reactivity With Air CO2 and Water (Group 1)

Q.

In presence of platinum at 800 degree Celsius, ammonia reacts with oxygen to give.

1. Nitric oxide and Water Vapour

2. Nitric Dioxide and Water Vapour

3. Dinitrogen trioxide and Water Vapour

4. None of the above

Q.

What happens when lead oxide is heated?

1. Two compounds are formed.

2. An element and a compound is formed.

3. Two elements are formed.

4. A compound is formed.

Q.

$BaS{O}_4$ and carbon on heating reacts to produce

1. 

2. 

3. 

4. 

Q. Question 57
An element forms an oxide $A_2{O}_3$ which is acidic in nature. Identify A as a metal or non-metal.

Q. Which one of the alkali metals forms only the normal oxide $M_{2}O$ on heating in air?

1. Rb

2. K

3. Li

4. Na

Q. \A yellow solid that burns with a blue flame, giving off a gas with a choking odour.
Identify the solid.
The atomic no. of the solid is___________.

Q. Which physical property of hydrogen gas is wrong?

1. Tasteless gas
2. Odourless gas
3. Colourless gas
4. Non-inflammable gas

Q.

The compound(s) formed upon combustion of sodium metal in excess air is(are)

1. $N{a}_2{O}_2$

2. $N{a}_{2}O$

3. $Na{O}_2$

4. $NaOH$

Q. Which of the following is an example of metal oxide?

1. $N{H}_{4}OH$
2. $H_{2}S{O}_4$
3. MgO
4. HCl