Halogens MCQs [Chemistry]

Set of Important MCQs on Chemistry of Halogens in inorganic chemistry for the preparation of tests.

How many types of Inter halogens?

1. 7
2. 6
3. 5
4. 4

Question’s Answer: 4

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What is the name of CIF?

1. Chlorine monofluoride
2. Fluorine chloride
3. Monochlorine fluoride
4. Monoflourine chloride

Chlorine monofluoride

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What are example of pseudohalogen group?

1. Selenocyanogen
2. Thiocyanogen
3. Cyanogen
4. All A, B, and C

Question’s Answer: All A, B, and C

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Which of the mentioned has the greatest value of electronegativity?

1. Br
2. CI
3. F
4. I

Question’s Answer: F

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The high oxidizing power of halogens is favored by which of the following?

1. Low heat of dissociation of X₂
2. A high electron affinity of the atom
3. A higher hydration energy of the ion
4. All A, B, and C

Question’s Answer: All A, B, and C

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In their ionic compounds, halogens exhibit the oxidation states of ________ .

1. -4
2. -2
3. -3
4. -1

Question’s Answer: -1

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All of these halogens form oxyacide, excluding ______ .

1. Chlorine
2. Fluorine
3. Bromine
4. Iodine

Question’s Answer: Fluorine

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Fluorine differs from the other members of its own group due to which of the mentioned reasons?

1. Its higher electronegativity
2. Its small size and low bond energy
3. Non-availability of d-orbitals in its valence shell
4. All A, B, and C

Question’s Answer: All A, B, and C

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Among all halogens no oxyacid of the following is known

1. iodine
2. Chlorine
3. Bromine
4. Fluorine

Question’s Answer: Fluorine

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Which of the mentioned members of the halogens family form hydrogen bonds?

1. Chlorine
2. Bromine
3. Fluorine
4. Iodine

Question’s Answer: Fluorine

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Fluorine form fluorides by reacting with_________ .

1. Metals
2. Metalloids
3. Non-metal
4. Any of A, B, and C

Question’s Answer: Any of A, B, and C

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Fluorine is _______ .

1. Most reactive element
2. Powerful oxidizing agent
3. Helpful and used as refrigerants in its compounds form
4. All A, B, and C

Question’s Answer: All A, B, and C

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Which of the mentioned oxidation states are shown by halogens?

1. +5, +7
2. +1, +3
3. +4, +6
4. All A, B, and C

Question’s Answer: All A, B, and C

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Separation of isotopes of uranium is carried out by

1. CaF₂
2. CH₂F₂
3. HF
4. SF₆

Question’s Answer: SF₆

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The electrolytic method super passes all other methods due to

1. Easy available
2. Cheapness
3. Purity
4. All A, B, and C

Question’s Answer: All A, B, and C

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On industrial scale, which method/process is used to prepare chlorine?

1. Dennis’s method
2. Plantner’s process
3. Deacon’s process
4. Aludels process

Question’s Answer: Deacon’s process

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Greenish yellow gas with pungent irritating odor

1. Fluorine
2. Iodine
3. Bromine
4. Chlorine

Question’s Answer: Chlorine

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Which of the mentioned halogen is helpful and used for sterilization of drinking water?

1. Chlorine
2. Fluorine
3. Bromine
4. Iodine

Question’s Answer: Chlorine

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Chlorine is helpful and used in which of the following?

1. Sterilization of water
2. Bleaching of cotton
3. Extraction of gold
4. All A, B, and C

Question’s Answer: All A, B, and C

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The bromine produced on commercial scale may contain impurities of which of the following?

1. Iodine
2. Chloride
3. Water
4. All A, B, and C

Question’s Answer: All A, B, and C

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The vapors of attacks the eyes and mucous membrane of nose and throat

1. Bromine
2. Fluorine
3. Chlorine
4. Iodine

Question’s Answer: Bromine

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Bromine is soluble in which of the following?

1. Alcohol
2. Chloroform
3. Water
4. All A, B, and C

Question’s Answer: All A, B, and C

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What is the most easily reduced halogen?

1. F₂
2. I₂
3. Cl₂
4. Br₂

Question’s Answer: F₂

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Bromine is helpful and used as ______ .

1. Germicides
2. Manufacture of dyes & tear gas
3. Oxidizing agent
4. All A, B, and C

Question’s Answer: All A, B, and C

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Iodine is a grey black solid and its vapors are in which color?

1. Grey
2. Black
3. Yellow
4. Violet

Question’s Answer: Violet

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Iodine is helpful and used in

1. Treatment of goiter
2. Iodex as antiseptic
3. Tincture of iodine
4. All A, B, and C

Question’s Answer: All A, B, and C

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The oxidation state of Cl in HClO₄

1. +3
2. +5
3. +7
4. +1

Question’s Answer: +7

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Increasing oxygen contents in oxyacids leads to

1. A decrease in oxidizing power
2. An increase in acid strength
3. An increase in thermal stability
4. All A, B, and C

Question’s Answer: All A, B, and C

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Which halogens is radioactive in nature?

1. Chlorine
2. Iodine
3. Astatine
4. Fluorine

Question’s Answer: Astatine

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Iodine is helpful and used in which of the following?

1. Analgesic
2. Photography
3. Manufacture of dyes
4. All A, B, and C

Question’s Answer: All A, B, and C

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Which of the mentioned is not inter halogen?

1. CIF
2. BrF₃
3. CIF₃
4. (CN)₂

Question’s Answer: (CN)₂

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Which of the mentioned inter halogens does not exist in nature?

1. FBr₃
2. IF₅
3. CIF₃
4. CIF

Question’s Answer: FBr₃

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Which of the mentioned statements is true about high reactivity of fluorine?

1. Small size
2. High electronegativity
3. Low bond energy
4. All A, B, and C

Question’s Answer: Small size

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What is the outermost electronic configuration of most electronegative element?

1. ns²np⁵
2. ns²np⁴
3. ns²np³
4. ns²np⁶

Question’s Answer: ns²np⁵

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Which of the halogens has lowest bond energy?

1. Br₂
2. Cl₂
3. F₂
4. I₂

Question’s Answer: F₂

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Which number of halogen family does not show positive oxidation state?

1. Chlorine
2. Fluorine
3. Bromine
4. Iodine

Question’s Answer: Fluorine

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Which of the mentioned is the strongest oxidant?

1. I₂
2. Cl₂
3. Br₂
4. F₂

Question’s Answer: F₂

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Which of the mentioned is a false statement?

1. Halogens are strong oxidizing agent
2. Halogens show only (-I) oxidation state
3. HF molecules form intermolecular H-bonds
4. Fluorine is highly reactive

Question’s Answer: Halogens show only (-I) oxidation state

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Chlorine gas acts as a bleaching agent only in presence of

1. Moisture
2. Dry Air
3. Sunlight
4. Pure oxygen

Question’s Answer: Moisture

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Tincture of iodine is

1. KI in water
2. Iodine in KI
3. Iodine in alcohol
4. Iodine in water

Question’s Answer: Iodine in alcohol

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The fluoride tooth-paste contains

1. NaF
2. SnF₂ and Sn₂P₂0₇
3. CaF₂
4. H₂[SiF₆]

Question’s Answer: NaF

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Group VII A of periodic table consist of how many elements ?

1. 2
2. 8
3. 6
4. 5

Question’s Answer: 5

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All halogens of ___  exist as covalent molecules.

1. Monoatomic
2. Triatomicc
3. Daitomic
4. Tetra-atomic

Question’s Answer: Daitomic

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Which of the mentioned hydrogen halides is the weakest in the aqueous solution?

1. HI
2. HF
3. HBr
4. HCI

Question’s Answer: HF

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Which of the mentioned halogens is solid at room temperature?

1. I₂
2. Br₂
3. Cl₂
4. F₂

Question’s Answer: I₂

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Which of the halogens is colored solid?

1. F₂
2. I₂
3. Cl₂
4. Br₂

Question’s Answer: I₂

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Which is the strongest reducing agent?

1. HI
2. HCI
3. HBr
4. HF

Question’s Answer: HI

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Which of the mentioned compounds han greatest boiling point?

1. HI
2. HF
3. HCI
4. HBr

Question’s Answer: HF

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Which of the mentioned has the maximum ionic character?

1. HCI
2. HF
3. HBr
4. HI

Question’s Answer: HF

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Which of the mentioned halogens is most easily reduced?

1. I₂
2. Br₂
3. F₂
4. Cl₂

Question’s Answer: F₂

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Which of the mentioned oxo acids of chlorine is the best oxidizing agent?

1. HCIO₂
2. HCIO
3. HClO₃
4. HCIO₄

Question’s Answer: HCIO

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Which of the mentioned halogens does not form oxyacide?

1. I₂
2. Br₂
3. F₂
4. Cl₂

Question’s Answer: F₂

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What is the structure of HCIO₂?

1. Angular
2. Linear
3. Trigonal pyramidal
4. Tetrahedral

Question’s Answer: Angular

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Which of the mentioned is highly dangerous acid and produces severe wounds on the skin?

1. HCIO₄
2. HCIO₂
3. HCIO₃
4. HCIO

Question’s Answer: HCIO₄

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What is the geometry of the HClO_4?

1. Distorted tetrahedral
2. Octahedral
3. Tetrahedral
4. Pentagonal

Question’s Answer: Tetrahedral

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Pick out the false statement for Cl_2.

1. It has trigonal planar geometry
2. It is helpful and used to make gaseous Ur is useful in making enriched U-230
3. It is helpful and used as powerful fluorinating agent for inorganic compounds
4. CIF3 has been helpful and used as fuel in short range rockets reacting with hydrazine.

Question’s Answer: It has trigonal planar geometry

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Which of the mentioned is the active ingredient in ordinary household bleach?

1. NaCIO
2. Cl₂
3. NaCl
4. HCI

Question’s Answer: NaCIO

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What is the accurate and true trend of ionization energies in halogens?

1. Increase down the group
2. Remains constant
3. First decreases then increases
4. Decreases down the group

Question’s Answer: Decreases down the group

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Which can be purified by sublimation?

1. I₂
2. Cl₂
3. Be₂
4. F₂

Question’s Answer: I₂

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Why Halogens are colored?

1. Because they are strong oxidant
2. Because their molecules are held together by weak van der Waals forces
3. Because their atoms absorb radiations from visible range causing the excitation of valence electrons to higher energy of levels
4. Because their molecules absorb light radiation forming the excited states.

Question’s Answer: Because their molecules absorb light radiation forming the excited states.

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Fluorine does not show variable oxidation state, because of

1. Its high electronegativity
2. Its small size
3. Non-availability of d-orbitals
4. Low dissociation energy of F-F bond

Question’s Answer: Non-availability of d-orbitals

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The accurate increasing order of bond dissociation energy for N₂, O₂, F₂ and Cl₂ is

1. F₂ < Cl₂ < O₂ < N₂
2. N₂ < O₂ < F₂ < Cl₂
3. F₂ < Cl₂ < N₂ < O₂
4. N₂ < Cl₂ < F₂ < O₂

Question’s Answer: F₂ < Cl₂ < O₂ < N₂

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Which of the mentioned belongs to pseudo halogens?

1. Azidocarbondisulfide
2. Thiocyanogen
3. Cyanogen
4. All A, B, and C

Question’s Answer: All A, B, and C

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What is the geometry of IF₇?

1. Distorted octahedral
2. Pentagonal bipyramidal
3. Octahedral
4. Icosahedral

Question’s Answer: Pentagonal bipyramidal

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Which compound is helpful and used in photography?

1. AgCl
2. Agl
3. AgF
4. AgBr

Question’s Answer: AgBr

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Which one of the following has the greatest electron affinity?

1. Cl₂
2. F₂
3. Br₂
4. I₂

Question’s Answer: Cl₂

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Deficiency of iodine in diet causes which of the following disorder?

1. Cancer
2. Leukemia
3. Goiter
4. Anaemia

Question’s Answer: Goiter

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Which of the mentioned is a perudohalide?

1. I₃
2. IF₇
3. ICI
4. CN

Question’s Answer: CN

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HCIO₄, HNO₃ and HCl are all strong acids in aqueous solution. In glacial acetic acid medium, their acid strength is such that

1. HCIO₄ > HCI > HNO₃
2. HNO₃ > HCIO₄ > HCI
3. HCI > HCIO₄ > HNO₃
4. HCI > HCIO₄ > HNO₃

Question’s Answer: HCIO₄ > HCI > HNO₃

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Which of the mentioned has maximum vapor pressure?

1. HF
2. HI
3. HBr
4. HCI

Question’s Answer: HI

More Inorganic Chemistry MCQs

1. Chemical Bonding MCQs
2. Acids and Bases in inorganic chemistry MCQs
3. Boron And Aluminum MCQs
4. Carbon and Silicon MCQs
5. Hydrogen, Alkali, and Alkaline Earth Metals MCQs
6. D-Block Elements MCQs [Chemistry]
7. F-Block Elements MCQs
8. Halogens MCQs
9. Inert Gases MCQs
10. Nitrogen and Phosphorus MCQs
11. Oxygen and Sulphur MCQs
12. Experimental Inorganic Chemistry MCQs
13. Periodic Classification Of Elements And Periodicity Of Properties MCQs
14. CHEMISTRY MCQs From all subjects of  Chemistry

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