Group 18 Elements
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NEET DIGITAL LIBRARY
CHXI11:THE P-BLOCK ELEMENTS

316434 Noble gases are named because of their inertness towards reactivity. Identify the incorrect statement about them.

1 Noble gases have very high melting and boiling points
2 Noble gases have weak dispersion forces.
3 Noble gases have large positive values of electron gain enthalpy.
4 Noble gases are sparingly soluble in water.
NEET - 2021
CHXI11:THE P-BLOCK ELEMENTS

316435 What is the correct order of occurrence ( \(\%\) by weight) in air of \(\mathrm{Ne}, \mathrm{Ar}\) and \(\mathrm{Kr}\) ?

1 \(\mathrm{Ne}>\mathrm{Ar}>\mathrm{Kr}\)
2 \(\mathrm{Ar}>\mathrm{Ne}>\mathrm{Kr}\)
3 \(\mathrm{Ar}>\mathrm{Kr}>\mathrm{Ne}\)
4 \(\mathrm{Ne}>\mathrm{Kr}>\mathrm{Ar}\)
CHXI11:THE P-BLOCK ELEMENTS

316436 Which one of the following noble gases is not found in atmosphere?

1 \(\mathrm{Rn}\)
2 \(\mathrm{Kr}\)
3 \(\mathrm{Ne}\)
4 \(\mathrm{Ar}\)
CHXI11:THE P-BLOCK ELEMENTS

316437 What is the percentage of Argon in air?

1 1
2 2
3 3
4 4
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CHXI11:THE P-BLOCK ELEMENTS

316434 Noble gases are named because of their inertness towards reactivity. Identify the incorrect statement about them.

1 Noble gases have very high melting and boiling points
2 Noble gases have weak dispersion forces.
3 Noble gases have large positive values of electron gain enthalpy.
4 Noble gases are sparingly soluble in water.
NEET - 2021
CHXI11:THE P-BLOCK ELEMENTS

316435 What is the correct order of occurrence ( \(\%\) by weight) in air of \(\mathrm{Ne}, \mathrm{Ar}\) and \(\mathrm{Kr}\) ?

1 \(\mathrm{Ne}>\mathrm{Ar}>\mathrm{Kr}\)
2 \(\mathrm{Ar}>\mathrm{Ne}>\mathrm{Kr}\)
3 \(\mathrm{Ar}>\mathrm{Kr}>\mathrm{Ne}\)
4 \(\mathrm{Ne}>\mathrm{Kr}>\mathrm{Ar}\)
CHXI11:THE P-BLOCK ELEMENTS

316436 Which one of the following noble gases is not found in atmosphere?

1 \(\mathrm{Rn}\)
2 \(\mathrm{Kr}\)
3 \(\mathrm{Ne}\)
4 \(\mathrm{Ar}\)
CHXI11:THE P-BLOCK ELEMENTS

316437 What is the percentage of Argon in air?

1 1
2 2
3 3
4 4
For More Updates join with Us
CHXI11:THE P-BLOCK ELEMENTS

316434 Noble gases are named because of their inertness towards reactivity. Identify the incorrect statement about them.

1 Noble gases have very high melting and boiling points
2 Noble gases have weak dispersion forces.
3 Noble gases have large positive values of electron gain enthalpy.
4 Noble gases are sparingly soluble in water.
NEET - 2021
CHXI11:THE P-BLOCK ELEMENTS

316435 What is the correct order of occurrence ( \(\%\) by weight) in air of \(\mathrm{Ne}, \mathrm{Ar}\) and \(\mathrm{Kr}\) ?

1 \(\mathrm{Ne}>\mathrm{Ar}>\mathrm{Kr}\)
2 \(\mathrm{Ar}>\mathrm{Ne}>\mathrm{Kr}\)
3 \(\mathrm{Ar}>\mathrm{Kr}>\mathrm{Ne}\)
4 \(\mathrm{Ne}>\mathrm{Kr}>\mathrm{Ar}\)
CHXI11:THE P-BLOCK ELEMENTS

316436 Which one of the following noble gases is not found in atmosphere?

1 \(\mathrm{Rn}\)
2 \(\mathrm{Kr}\)
3 \(\mathrm{Ne}\)
4 \(\mathrm{Ar}\)
CHXI11:THE P-BLOCK ELEMENTS

316437 What is the percentage of Argon in air?

1 1
2 2
3 3
4 4
NEET DIGITAL LIBRARY
CHXI11:THE P-BLOCK ELEMENTS

316434 Noble gases are named because of their inertness towards reactivity. Identify the incorrect statement about them.

1 Noble gases have very high melting and boiling points
2 Noble gases have weak dispersion forces.
3 Noble gases have large positive values of electron gain enthalpy.
4 Noble gases are sparingly soluble in water.
NEET - 2021
CHXI11:THE P-BLOCK ELEMENTS

316435 What is the correct order of occurrence ( \(\%\) by weight) in air of \(\mathrm{Ne}, \mathrm{Ar}\) and \(\mathrm{Kr}\) ?

1 \(\mathrm{Ne}>\mathrm{Ar}>\mathrm{Kr}\)
2 \(\mathrm{Ar}>\mathrm{Ne}>\mathrm{Kr}\)
3 \(\mathrm{Ar}>\mathrm{Kr}>\mathrm{Ne}\)
4 \(\mathrm{Ne}>\mathrm{Kr}>\mathrm{Ar}\)
CHXI11:THE P-BLOCK ELEMENTS

316436 Which one of the following noble gases is not found in atmosphere?

1 \(\mathrm{Rn}\)
2 \(\mathrm{Kr}\)
3 \(\mathrm{Ne}\)
4 \(\mathrm{Ar}\)
CHXI11:THE P-BLOCK ELEMENTS

316437 What is the percentage of Argon in air?

1 1
2 2
3 3
4 4
Join With Us for More Updates