Current Affairs Quiz 2024GKCourses AptitudeADRE 2.0EnglishUGC NET

Class 12 Chemistry Chapter 7 p Block Elements MCQs | Multiple Choice Questions (MCQs) and Answers on Class 12 Chemistry Chapter 7 p Block Elements

Download PDF

Free download in PDF Multiple Choice Questions (MCQs) and Answers on Class 12 Chemistry Chapter 7 p Block Elements for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like NEET, AIIMS, JIPMER etc. These short solved questions or quizzes are provided by Gkseries./p>

Go To Download Page
(1) The most efficient agent for the absorption of SO3 is
[A] 80% H2SO4
[B] 98% H2SO4
[C] 50% H2SO4 
[D] 20% H2SO4
Answer: 98% H2SO4
(2) In presence of moisture , SO2 can
[A] Act as oxidant
[B] Lose electron
[C] Gain electron
[D] Not act as reductant
Answer: Lose electron
(3) The correct order of thermal stability of hydrogen halide.
[A] HI > HBr > HCl > HI
[B] HF > HCl > HBr > HI
[C] HCI < HF < HBr < HI
[D] HI > HCl > HF > HBr
Answer: HF > HCl > HBr > HI
(4) The solubility of iodine in water increases in presence of
[A] Alcohol
[B] Chloroform
[C] Sodium hydroxide
[D] Potassium trichloride
Answer: Potassium trichloride
(5) On boiling an aqueous solution of KClO3 with iodine the following is obtained
[A] KClO3
[B] KClO4
[C] KClO2
[D] KIO3
Answer: KClO3
(6) Colour of iodine is disappeared by shaking it with aqueous solution of
[A] H2SO4
[B] Na2S2O3
[C] Na2S
[D] Na2SO4
Answer: Na2S
(7) The stability of interhalogen compound is in order

[A] IF3 > UF3 > BrF3 
[B] BrF3 > IF3 > ClF3
[C] IF3 > BrF3 > ClF33
[D] ClF3 > IF3 > BrF3
Answer: BrF3 > IF3 > ClF3
(8) Bromine is obtained on commercial scale from
[A] Caliche
[B] Carnellite
[C] Common Salt
[D] Cryolite
Answer: Carnellite
(9) Chlorine was discovered by
[A] Davy
[B] Priestley
[C] Ratherlford
[D] Sheele
Answer: Davy
(10) Bromine is liberated when aqueous solution of potassium bromide is treated with
[A] Cl
[B] I2
[C] Dilute H2SO4
[D] SO2
Answer: Cl
(11) Chlorine reacts under various conditions with sodium hydroxide to give
[A] Sodium Chloride
[B] Sodium hypochlorite
[C] Sodium chlorate
[D] All of these
Answer: All of these
(12) Br2 gas turns starch iodide paper
[A] Blue
[B] Red
[C] Colourless
[D] Yellow
Answer: Blue
(13) Which of following is weakest acid?
[A] HF
[B] HCl
[C] HBr
[D] HI
Answer: HF
(14) Deacon’s process is used in manufacture of
[A] Bleaching powder
[B] Sulphonic acid
[C] Nitric acid
[D] Chlorine
Answer: Chlorine
(15) Which of following is correct?
[A] Iodine is solid
[B] Chlorine is insoluble in water
[C] Iodine is more reactive than bromine
[D] Bromine is more reactive than chlorine
Answer: Iodine is solid
(16) Sea water is employed as a source of manufacture of
[A] F
[B] I
[C] Br
[D] Cl
Answer: I
(17) Which is most reactive halogen
[A] Cl2
[B] Br2
[C] I2
[D] F2
Answer: F2
(18) Which of following represents clear electro positive properties
[A] F
[B] Cl
[C] Br
[D] I
Answer: I
(19) Which of following represents outermost shell of halogens
[A] S2P3
[B] S2P6
[C] S2P4
[D] S2P5
Answer: S2P5
(20) Most activeness of fluorine is due to
[A] F-F bond has less energy
[B] F2 is gas at normal temp
[C] Its e - affinity is max
[D] None of above
Answer: F-F bond has less energy

Take Mock Tests

Missiles Mock Test Start Test!
SSC MTS Mock Test Start Test
IBPS CLERK MOCK TEST Start Test
SSC MTS 2022 JULY 26 Shift 1 (ENGLISH) Start Test!
SSC GD Previous Year Paper 2021 Nov 17 Shift - I (Hindi) Start Test!
SSC CGL Tier - 1 PYP 2022 April 21 Shift- 1 (ENGLISH) Start Test!
MPSC PAPER I MOCK TEST 1 (ENGLISH) Start Test!
IB Security Assistant Mock test 1 (english) Start Test!
UP POLICE CONSTABLE MOCK TEST 1 Start Test!
DELHI POLICE CONSTABLE MOCK TEST 1 (HINDI) Start Test!

Chapters

LEAVE A COMMENT