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Test: Compounds of Halogens - NEET MCQ


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25 Questions MCQ Test Chemistry Class 12 - Test: Compounds of Halogens

Test: Compounds of Halogens for NEET 2024 is part of Chemistry Class 12 preparation. The Test: Compounds of Halogens questions and answers have been prepared according to the NEET exam syllabus.The Test: Compounds of Halogens MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Compounds of Halogens below.
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Test: Compounds of Halogens - Question 1

Direction (Q. Nos. 1- 10) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.

Q. 

Regarding the properties of hydrogen halides, which is wrong order?

Detailed Solution for Test: Compounds of Halogens - Question 1

The correct order of % of ionic character is

Test: Compounds of Halogens - Question 2

The reaction 3ClO-(aq) → 2Cl- (aq) + ClO3-(aq) is an example of

Detailed Solution for Test: Compounds of Halogens - Question 2

The reaction in which a species is simultaneously reduced and oxidised to form two different products is known as disproportionation reaction.

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Test: Compounds of Halogens - Question 3

Which is incorrect statement?

Detailed Solution for Test: Compounds of Halogens - Question 3

As we move down the group, stability of oxides decreases because the size increases.

Test: Compounds of Halogens - Question 4

When gold and platinum dissolves in aqua-regia, the complexes formed are

Detailed Solution for Test: Compounds of Halogens - Question 4


Test: Compounds of Halogens - Question 5

Mixture which contains equal amount of sodium chloride (NaCl) and sodium chlorate (NaClO3) gives off

Detailed Solution for Test: Compounds of Halogens - Question 5

The correct answer is option A

On decomposition of NaClO3 , it gives NaCl and O in nascent form. it might get decomposed. As we know nascent [O] shows bleaching action due to its oxidizing properties.

Test: Compounds of Halogens - Question 6

In perchloric acid (HCIO4), the number of σ and π-bonds

Detailed Solution for Test: Compounds of Halogens - Question 6

The structure of perchlo ric acid (HCIO4) is

5σ and 3π-bonds

Test: Compounds of Halogens - Question 7

The correct order of acidic strength is

Detailed Solution for Test: Compounds of Halogens - Question 7

The correct order of acidic strength is Cl2O7 > SO2 > P4O10

Test: Compounds of Halogens - Question 8

Which of the following arrangements gives the correct order of increasing oxidation number of iodine?

Detailed Solution for Test: Compounds of Halogens - Question 8

Test: Compounds of Halogens - Question 9

Which of the following is incorrect?

Detailed Solution for Test: Compounds of Halogens - Question 9

 has pyramidal while  has trigonal planar shape.

Test: Compounds of Halogens - Question 10

Correct order of bond angles are in 

Detailed Solution for Test: Compounds of Halogens - Question 10

In CIO2, due to larger size of chlorine atom, repulsion between non-bonding electrons on the chlorine atoms overcome the lone pair-lone pair repulsion. Hence, the order of bond angle 
CIO2 > Cl2O > H2O > OF2

*Multiple options can be correct
Test: Compounds of Halogens - Question 11

Direction (Q. Nos. 11-15) This section contains 5 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.

Q.

Paramagnetic oxide among the following is/are

Detailed Solution for Test: Compounds of Halogens - Question 11

Paramagnetic oxide has unpaired electrons or odd number of electrons.

Test: Compounds of Halogens - Question 12

Which of the following shows disproportionation reaction?

Detailed Solution for Test: Compounds of Halogens - Question 12

Cl2 + 2OH- → Cl + OCI- + H2O is a disproportionation reaction.

Cl0 → Cl-1

Cl0 → Cl+1

Hence correct option is B

Test: Compounds of Halogens - Question 13

In chlorination of water, reactive oxygen atoms are produced by

*Multiple options can be correct
Test: Compounds of Halogens - Question 14

Which of the following reactions is/are not feasible?

Detailed Solution for Test: Compounds of Halogens - Question 14

Iodine cannot displace Cl- and Br- from their salt and bromine cannot displace Cl-from their salt.

*Multiple options can be correct
Test: Compounds of Halogens - Question 15

Bleaching powder liberate chlorine by

Detailed Solution for Test: Compounds of Halogens - Question 15


Test: Compounds of Halogens - Question 16

Direction (Q. Nos. 16 and 17) This section contains a paragraph, describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer among the four given options (a), (b), (c) and (d).

Passage

A salt A when heated with K2Cr2O7 and cone. H2SO4 liberates a gas which is absorbed in NaOH solution. The NaOH solution turns yellow. When this solution is acidified with acetic acid and lead acetate solution is added, a yellow precipitate B is formed. When A is mixed with MnO2 and heated with cone. H2SO4 , a gas C is evolved which turns a starch-iodide paper blue.

Q. 

What is the colour of the gas which is evolved when salt A is heated with MnO2 and H2SO4?

Detailed Solution for Test: Compounds of Halogens - Question 16

Greenish yellow gas is chlorine.

Test: Compounds of Halogens - Question 17

A salt A when heated with K2Cr2O7 and cone. H2SO4 liberates a gas which is absorbed in NaOH solution. The NaOH solution turns yellow. When this solution is acidified with acetic acid and lead acetate solution is added, a yellow precipitate B is formed. When A is mixed with MnO2 and heated with cone. H2SO4 , a gas C is evolved which turns a starch-iodide paper blue.

Q. 

When the salt A is heated with cone. H2SO4, colourless gas is evolved which gives dense fumes when exposed with ammonia. The gas is

Detailed Solution for Test: Compounds of Halogens - Question 17

Chloride salt produce colourless HCI vapours with conc. H2SO4 and these become dense due to NH4Cl on exposure to ammonia.

Test: Compounds of Halogens - Question 18

Direction (Q. Nos. 18-20) Choices for the correct combination of elements from Column I and Column II are given as options (a), (b), (c) and (d) out of which one is correct.

Q. 

Match the Column I with Column II and mark the correct option from the codes given below. 

Detailed Solution for Test: Compounds of Halogens - Question 18

Test: Compounds of Halogens - Question 19

Match the Column I with Column II and mark the correct option from the codes given below.  

Detailed Solution for Test: Compounds of Halogens - Question 19

Test: Compounds of Halogens - Question 20

Match the Column I with Column II and mark the correct option from the codes given below.

Detailed Solution for Test: Compounds of Halogens - Question 20

*Answer can only contain numeric values
Test: Compounds of Halogens - Question 21

Direction (Q. Nos. 21-24) This section contains 4 questions. When worked out will result in an integer from 0 to 9 (both inclusive).

Q. 

The total number of lone pairs in Cl2O molecule are ............


Detailed Solution for Test: Compounds of Halogens - Question 21


Two lone pairs on oxygen and three lone pairs on each chlorine.

*Answer can only contain numeric values
Test: Compounds of Halogens - Question 22

Number of sigma bonds present in Cl2O7 are .............


Detailed Solution for Test: Compounds of Halogens - Question 22

*Answer can only contain numeric values
Test: Compounds of Halogens - Question 23

Number of chemical species having sp3-hybridisation among these 


Detailed Solution for Test: Compounds of Halogens - Question 23

Except , all others have sp3 hybridised atoms.

*Answer can only contain numeric values
Test: Compounds of Halogens - Question 24

Aqua-regia is a mixture of one mole of cone. HNO3 and x moles of cone. HCI. Here, x value is ............


Detailed Solution for Test: Compounds of Halogens - Question 24

Aqua-regia is a mixture of one mole of cone. HNO3 and 3 moles of cone. HCI.

Test: Compounds of Halogens - Question 25

Direction (Q. No. 25) This section is based on Statement I and Statement II. Select the correct answer from the codes given below.

Q. 

Statement I : On dehydration with P2O5 at 263 K, HCIO4 gives Cl2O7.

Statement II : This method is used in the preparation of Cl2O7

Detailed Solution for Test: Compounds of Halogens - Question 25

On dehydration with P2O5 at - 10°C, HCIO4 gives Cl2O7 which is the anhydride of perchloric acid.

This reaction has been used for the preparation of Cl2O7.

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