Group 16 - Preparation, Properties & Uses Past Year (2006 - 2015) MCQs The p-Block Elements (XII) Chemistry NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

Q1:

Which of the statements given below is incorrect?

1. $C l_{2} O_{7}$ is an anhydride of perchloric acid

2. $O_{3}$ molecule is bent

3. ONF is isoelectronic with $N O_{2}^{-}$

4. $O F_{2}$ is an oxide of fluorine

Subtopic: Group 17 - Preparation, Properties & Uses | Group 16 - Preparation, Properties & Uses |

60%

From NCERT

NEET - 2015

1

2

3

4

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Q2:

The acidity of diprotic acids in aqueous solution increases in the order:

1. H₂S < H₂Se < H₂Te

2. H₂Se < H₂S < H₂Te

3. H₂Te < H₂S < H₂Se

4. H₂Se < H₂Te < H₂S

Subtopic: Group 16 - Preparation, Properties & Uses |

88%

From NCERT

AIPMT - 2014

1

2

3

4

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Links

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Q3:

Sulphur trioxide can be obtained by which of the following reaction:

1. $C a S O_{4} + C \overset{∆}{\to}$

2. $F e_{2} (S O_{4})_{3} \overset{∆}{\to}$

3. $S + H_{2} S O_{4} \overset{∆}{\to}$

4. $H_{2} S O_{4} + P C l_{5} \overset{∆}{\to}$

Subtopic: Group 16 - Preparation, Properties & Uses |

52%

AIPMT - 2012

1

2

3

4

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Hints

Q4:

The given sequence among the following arrangements that is not strictly according to the property indicated against it.

1.	H₂O < H₂S < H₂Se < H₂Te : $\small{i n c r e a sin g \ p K_{a}\ v a l u e s}$
2.	$\small{N H_{3} < P H_{3} < A s H_{3} < S b H_{3} : i n c r e a sin g \ a c i d i c \ c h a r a c t e r}$
3.	$\small{C O_{} < S i O_{} < S n O_{} < P b O_{2} : i n c r e a sin g \ o x i d i sin g \ p o w e r} $
4.	$\small{H F < H C l < H B r < H I : i n c r e a sin g \ a c i d i c \ s t r e n g t h} $

Subtopic: Group 17 - Preparation, Properties & Uses | Group 16 - Preparation, Properties & Uses | Group 15 - Preparation, Properties & Uses |

79%

From NCERT

AIPMT - 2012

1

2

3

4

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Q5:

Match List-I (substances) with List-II (processes) employed in the manufacture of the substances and select the correct option.

List –I (Substances)	List – II (Processes)
(a) Sulphuric acid	(i) Haber's Process
(b) Steel	(ii) Bessemer's Process
(c) Sodium carbonate	(iii) Leblanc Process
(d) Ammonia	(iv) Contact Process

Options :	(a)	(b)	(c)	(d)
1.	(i)	(ii)	(iii)	(iv)
2.	(iv)	(iii)	(ii)	(i)
3.	(iv)	(ii)	(iii)	(i)
4.	(i)	(iv)	(ii)	(iii)

Subtopic: Group 16 - Preparation, Properties & Uses | Group 15 - Preparation, Properties & Uses |

58%

From NCERT

AIPMT - 2010

1

2

3

4

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Q6:

The number of unpaired electrons in a paramagnetic diatomic molecule of an element with atomic number 16 is:

1. 2

2. 3

3. 4

4. 1

Subtopic: Group 16 - Preparation, Properties & Uses |

69%

From NCERT

AIPMT - 2006

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2

3

4

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1.	H₂O < H₂S < H₂Se < H₂Te : \(\small{i n c r e a sin g \ p K_{a}\ v a l u e s}\)
2.	\(\small{N H_{3} < P H_{3} < A s H_{3} < S b H_{3} : i n c r e a sin g \ a c i d i c \ c h a r a c t e r}\)
3.	\(\small{C O_{} < S i O_{} < S n O_{} < P b O_{2} : i n c r e a sin g \ o x i d i sin g \ p o w e r} \)
4.	\(\small{H F < H C l < H B r < H I : i n c r e a sin g \ a c i d i c \ s t r e n g t h} \)

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