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Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - JEE MCQ


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30 Questions MCQ Test - Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements)

Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) for JEE 2024 is part of JEE preparation. The Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) questions and answers have been prepared according to the JEE exam syllabus.The Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) MCQs are made for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) below.
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Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 1
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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. 

The number of unpaired electrons present in the species [Fe(H2O)5NO]2+ which is formed during 'brown ring’ test is

Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 1

In this, iron has +1 and NO has +1 oxidation state. Iron has 3 unpaired electrons with magnetic moment 

Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 2
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In which one of the following pairs the species have similar geometry?

Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 2

Both have tetrahedral geometry.

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Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 3
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O2 is converted into O+2 using

Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 3

PtF6 is one of the few oxidising agents sufficiently powerful to oxidise O2 

Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 4
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Which of the following pairs has the highest difference in their first ionisation energy?
Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 4

The pair of Ne and Na has the highest difference in their first ionisation energy.

Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 5
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Among the compounds I to IV, those which hydrolyse easily 
I. NCI3
II. NF3
III. BiCl3
IV. PCI3
Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 5

NF3 does not react with water at ambient temperature however, slowly hydrolysed by basic solution at 100°C

Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 6
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Among the following pairs, those in which both species have similar structure are
Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 6

Both are linear.

Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 7
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The oxoacid of sulphur that does not contain S—S bond is
Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 7

Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 8
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Among the following NO, SO2, SO3, CaO, Cl2O , Cl2O7, CO, N2O3, P4O10 the number of anhydrides of acids are
Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 8

SO2, SO3, Cl2O , Cl2O7, N2O3, P4O10 are acid anhydrides.

Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 9
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How many H+ ions are required when the equation below is balanced with the smallest whole number coefficients?
Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 9

Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 10
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In the reaction, 
Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 10

Here, oxidation state of hydrogen (+1) remains constant and oxygen (- 2) remains constant. But S in SO2 reduces from S (+ 4) to S(0) and sulphur in H2S oxidises from S(-2) to S (0).

*Multiple options can be correct
Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 11
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Direction (Q. Nos. 11-20) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.

Q. 

Among the following, the species having same bond order are
Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 11

NO and  have 15 electrons each. A ccordin g to MOT, the bond order in them is 2.5.

*Multiple options can be correct
Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 12
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The oxidation number of sulphur atoms in Na2S4O6 are
Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 12

Two of the sulphur atoms present in the tetrathionate anion   a re in oxidation state 0 and two are in oxidation state +5

*Multiple options can be correct
Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 13
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Which of the following statement is correct?
Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 13

(a) ONCl has 8+7+17 = 32 electrons;

    ONO- has 8+7+8+1 = 24 electrons; Hence they are not isoelectronic.

(b) Molecular structure of ozone is not linear but appear bent.

(c) Ozone is mild blue in gas state, dark blue in liquid and violet black in solid state.

(d) Ozone has all electrons paired. Hence a diamagnetic gas.

Ozone is sp2-hybridised, has bent structure and is diamagnetic in nature.

 

*Multiple options can be correct
Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 14
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Among PbS, CuS, MnS, NiS, CoS, HgS, Ag2S, Bi2S3 and SnS2 the black coloured sulphides are
Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 14

CuS and Ag2S are black while CdS is yellow and MnS is flesh coloured.

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Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 15
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Choose the correct statement from the following.
Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 15

In HF, there is strong intermolecular H-bonding between F and H. Hence, HF is lower volatile hydride.

*Multiple options can be correct
Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 16
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The number of lone pairs are identical in the pairs.
Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 16

 have two lone pairs each.

*Multiple options can be correct
Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 17
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Which of the following is oxidised byozone ?
Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 17

Ozone does not oxidise KMnO4 as Mn is already in maximum +7 oxidation state.

*Multiple options can be correct
Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 18
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Identify the correct statements.
Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 18

Correct Answer :- a,b,d

Explanation : a) N-O bond in N-O2 is shorter than in NO3 because bond length increases with decreasing bond order and the N-O bond order in NO3 is less than the N-O bond order in NO2 .

b) NH3 or PH3 accepts a proton, an additional N−H or P−H bond is formed.

H3N: + H+ → NH + 4

H3N: + H+ → PH + 4

Due to the bigger size of P than N,P−H bond thus formed is much weaker than the N−H bond. Thus, NH3 has higher proton affinity than PH3.

c) S atom in SF4 is surrounded by only 4 Fluorine atoms whereas in SF6 the S atom is surrounded by 6 Fluorine atom. Due to highly stabilized of sp3 d2 configuration in SF6 the water molecules find less gap to attack on central atom. ... That's why SF4 is easily hydrolysed but SF6 is not hydrolysed.

d) Under ordinary conditions sulphur exists as S8 in solid state. In vapour state sulphur partly exists as S2 molecule and S2 molecule has two unpaired electrons in the antibonding π* orbitals. Hence, in vapour state sulphur exhibits paramagnetism.

 

*Multiple options can be correct
Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 19
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Which of the following statements is/are correct ?
Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 19

(a) The Hlformed initially is oxidised by H2SO4 into iodine.
(b) Both have pyramidal geometry.
(c) Due to inert pair effect, Bi5+ gains two electrons and is converted into Bi3+.
(d) NH3 is not linear while is linear.

*Multiple options can be correct
Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 20
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Regarding S8 molecule correct statements are
Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 20

S8 molecule has non-planar cyclic structure.

Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 21
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Direction (Q. Nos. 21 and 22) This section contains a paragraph, each 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

The reactions of Cl2 gas with cold dilute and hot cone. NaOH in water give sodium salts of two (different) oxoacids of chlorine, P and Q respectively. The Cl2 gas reacts with SO2 gas in the presence of charcoal, to give product R. R reacts with white phosphorus to give a compounds. On hydrolysis, S gives an oxoacid of phosphorus, T.

Q. 

P and Q respectively are the sodium salts of
Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 21


NaOCI is sodium hypochlorite

NaCIO3 is sodium chlorate.

Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 22
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The reactions of Cl2 gas with cold dilute and hot cone. NaOH in water give sodium salts of two (different) oxoacids of chlorine, P and Q respectively. The Cl2 gas reacts with SO2 gas in the presence of charcoal, to give product R. R reacts with white phosphorus to give a compounds. On hydrolysis, S gives an oxoacid of phosphorus, T.

Q. 

R, S and T respectively are
Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 22

Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 23
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Direction (Q. No. 23) This section is based on Statement I and Statement II. Select the correct answer from the codes given below.

Q. 

Statement I : The most stable octaatomic interhalogen compound is IF7.

Statement II : The difference between electronegativities of iodine and fluorine is greatest among the halogens.
Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 24
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Match the following reactions given in Column I with the corresponding products given in Column II.
Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 24



*Answer can only contain numeric values
Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 25
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Direction (Q. Nos. 25-30) This section contains 6 questions. When worked out will result in an integer from 0 fo 9 (both inclusive).

Q. How many moles of water reacts with one mole of PCI5 for complete hydrolysis?

Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 25

*Answer can only contain numeric values
Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 26
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The num ber of P—O—P bon ds in the cyclic trimer of metaphosphoric acid is

Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 26

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Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 27
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 Find the number of chemical species having pyramidal shape among these species

Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 27

 have pyramidal shape.

*Answer can only contain numeric values
Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 28
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Among the following the number of metals which are rendered passive in the presence of cone. HNO3,

Al, Sn, Pb, Fe, Cr, Zn, Ni, Hg, Cu.

Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 28

Al, Fe, Cr, Ni are rendered passive by cone. HNO3.

*Answer can only contain numeric values
Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 29
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Find the number of chem ical species among following that have dπ - pπ bonds in their structure

Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 29

  have dπ - pπ bonding.

*Answer can only contain numeric values
Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 30
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How many orbitals are involved in the hybridisation of iodine in


Detailed Solution for Revisal Problems (Past 13 Year) JEE Advanced (P Block Elements) - Question 30

sp3d2-hybridisation.

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