Write true or false for the following statements.
Neon gas is used for filling weather observation balloons.

True

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False

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Solution

The correct option is B False
For two reasons, helium is used to fill weather balloons:
1. It is lighter than air, with a density of roughly one-eighth that of air, allowing it to travel upward in the atmosphere for weather forecasting.
2. Unlike hydrogen, it is inert and non-flammable, so there is no chance of explosion.
Hence, the given statement is false.
Corrected statement: Helium gas is used for filling weather observation balloons.

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Write true or false for the following statements.

The catalyst ${MnO}_{2}$ is used for laboratory preparation of oxygen gas.

Helium gas is used in filling weather balloons.

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