Test: Compounds of Halogens - NEET MCQ
25 Questions MCQ Test Chemistry Class 12 - Test: Compounds of Halogens
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?
The reaction 3ClO-(aq) → 2Cl- (aq) + ClO3-(aq) is an example of
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When gold and platinum dissolves in aqua-regia, the complexes formed are
Mixture which contains equal amount of sodium chloride (NaCl) and sodium chlorate (NaClO3) gives off
In perchloric acid (HCIO4), the number of σ and π-bonds
Which of the following arrangements gives the correct order of increasing oxidation number of iodine?
has pyramidal while 
has trigonal planar shape.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
Which of the following shows disproportionation reaction?
In chlorination of water, reactive oxygen atoms are produced by
Which of the following reactions is/are not feasible?
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?
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
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.
Match the Column I with Column II and mark the correct option from the codes given below.
Match the Column I with Column II and mark the correct option from the codes given below.
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 ............
Number of sigma bonds present in Cl2O7 are .............
Number of chemical species having sp3-hybridisation among these
, all others have sp3 hybridised atoms.Aqua-regia is a mixture of one mole of cone. HNO3 and x moles of cone. HCI. Here, x value is ............
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
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