Properties and Uses of Noble Gases

Q. Which noble gas is used in the flash units photographic camera?

1. Xenon
2. Argon
3. Helium
4. Krypton

Q.

Which gas is used in weather observation balloons?

1. argon

2. neon

3. helium

4. xenon

Q.

Neon gas is used in glow signboards.

1. True
2. False

Q. The noble gas that can be used in low temperature cryogenics is .

1. Neon
2. Argon
3. Helium
4. Xenon

Q. ___ is used to create an inert atmosphere for welding.

1. Helium
2. Neon
3. Argon
4. Krypton

Q. Identify the noble gas that is liberated as a product of radioactive decay.

1. Radon
2. Neon
3. Krypton
4. Xenon

Q. How to learn the first twenty elements

Q. Which of the following noble gas/gases will not give intense white light when electric current is passed through it/them?

1. Neon
2. Xenon
3. Argon
4. Krypton

Q. Match the following noble gases with their usage.

$\begin{array}{cc}\text{Noble Gas}& \text{Usage}\\ \text{A)}\text{Helium}& 1)\text{Treatment of cancer patients}\\ \text{B)}\text{Neon}& 2)\text{Used in advertising sign lamps}\\ \text{C)}\text{Radon}& 3)\text{Used in airport runway light}\\ \text{D)}\text{Krypton}& 4)\text{Used as a coolant in nuclear reactors}\end{array}$

1. A-2, B-3, C-4, D-1
2. A-1, B-2, C-3, D-4
3. A-4, B-2, C-1, D-3
4. A-2, B-1, C-4, D-3

Q. The noble gas used as a coolant in nuclear reactors is

1. Neon
2. Argon
3. Krypton
4. Helium

Q.

Solve the following crossword puzzle by identifying the names of gases from the information given about them.

Across

3. The gas which is a major constituent of CNG used as fuel.

4. The gas which is the major constituent of earths atmosphere.

5. A gas which is produced inside the sun by fusion reaction.

6. The gas found in stratosphere that absorbs harmful UV radiations from the sun and prevents them from reaching earth surface.

Down

1. A gas used for disinfecting water of swimming pool.
2. A gas used in advertisement signage displays that shows up a bright red colour when electricity is passed through it.

Q.

Differentiate between the following.

Nitrogen and Argon

Q.

Aerated drinks contain nitrogen gas.

1. True
2. False

Q. Which noble gas is used in airport runway lights?

1. Helium
2. Neon
3. Argon
4. Krypton

Q.

An element that burns spontaneously in air:

1. Sulphur

2. Carbon

3. Phosphorous

4. Magnesium

Q. Assertion: Argon gas is filled in the electric bulb.

Reason: Argon does not react with the filament in an electric bulb even at high temperature.

1. Both assertion and reason are true and reason is the correct explanation of assertion.
2. Both assertion and reason are true but reason is not the correct explanation of assertion.
3. Assertion is true but reason is false.
4. Assertion is false but reason is true.

Q.

How radon is used in decorative lights?

Q. Which gas is used along with the helium to shield welding arcs?

1. Krypton
2. Radon
3. Argon
4. Xenon

Q. Choose the correct option regarding the statements given below:

Statement 1: Argon is used in advertising sign lamps.
Statement 2: Neon emits a reddish-orange glow when an electric current flows through it.

1. Both statements are incorrect.
2. Both statements are correct.
3. Statement 1 is correct but statement 2 is incorrect.
4. Statement 1 is incorrect but statement 2 is correct.

Q. Helium is preferred over ___ to fill weather balloons because it is safer.

Q. Weather balloons are filled with helium because:

1. Less reactive
2. Condenses at very low temperature
3. Heavier than hydrogen
4. lighter than air

Q. One of the product formed during the radioactive decay of uranium is:

1. Krypton
2. Neon
3. Xenon
4. Radon

Q. Helium is preferred over ___ to fill weather balloons because it is safer.

Q.

The anode glow in case of neon is ____________ colour.

Q. Choose the incorrect statement from the options given below.

1. Argon is the most abundant noble gas in the earth’s atmosphere.
2. Argon is used to create an inert atmosphere for welding.
3. Argon is used in the airport runway light.
4. Argon is used in electric bulbs.

Q. Give one use for the following inert gases:

Q. nt48gm oxygen at 60degree celcius and 12gm helium at 200degree celcius are mixed in a closed vessel . find the final tempreture.n

Q. Which of the following applications is an inaccurate application of noble gases?

1. Helium and Argon are used to produce inert atmospheres for welding
2. Helium is suitable to fly air balloons and airships
3. Neon, Argon, Krypton and Xenon are used to impart different colours in “neon lights”
4. None of the above

Q. Which of the following compound is more likely to exist?

1. Neon tetra fluoride
2. Xenon tetra fluoride
3. Argon tetra fluoride
4. Helium tetra fluoride

Q. Radon is used in _______.

1. light house lamps
2. treating cancerous tissues
3. advertising sign lamps
4. flash units photographic camera