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NEET Exam  >  NEET Tests  >  Daily Test for NEET Preparation  >  Test: Polyhalogen Compounds (January 27) - NEET MCQ

Test: Polyhalogen Compounds (January 27) - NEET MCQ


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10 Questions MCQ Test Daily Test for NEET Preparation - Test: Polyhalogen Compounds (January 27)

Test: Polyhalogen Compounds (January 27) for NEET 2024 is part of Daily Test for NEET Preparation preparation. The Test: Polyhalogen Compounds (January 27) questions and answers have been prepared according to the NEET exam syllabus.The Test: Polyhalogen Compounds (January 27) MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Polyhalogen Compounds (January 27) below.
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Test: Polyhalogen Compounds (January 27) - Question 1
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Which among the following is true?

Detailed Solution for Test: Polyhalogen Compounds (January 27) - Question 1

The correct answer is Option C.
Freon (Eg: CFCl3 – Freon11) does initiate radical chain reactions in the stratosphere, which can upset the ozone layer.

Test: Polyhalogen Compounds (January 27) - Question 2
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The chloro compound which can be used as fire extinguisher is:

Detailed Solution for Test: Polyhalogen Compounds (January 27) - Question 2

The correct answer is Option C.

Its use in the home as a spot remover should be avoided because of its poisonous nature.
Because it's vapours (incombustible vapours) are denser than air which leads to a smoother flame.

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Test: Polyhalogen Compounds (January 27) - Question 3
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 Which is the correct formula of Freon-12?

Detailed Solution for Test: Polyhalogen Compounds (January 27) - Question 3

The correct answer is option A

Test: Polyhalogen Compounds (January 27) - Question 4
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 The IUPAC name of chloroform is:
Detailed Solution for Test: Polyhalogen Compounds (January 27) - Question 4

Chloroform, or trichloromethane, is an organic compound with formula CHCl3. It is a colorless, strong-smelling, dense liquid that is produced on a large scale as a precursor to PTFE. It is also a precursor to various refrigerants.

Test: Polyhalogen Compounds (January 27) - Question 5
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The antiseptic properties of iodoform is due to which of the following:
Detailed Solution for Test: Polyhalogen Compounds (January 27) - Question 5

Iodoform liberates I2, when it comes in contact with skin Antiseptic property of iodine is due to the liberation of I2, not because of iodoform itself.

Test: Polyhalogen Compounds (January 27) - Question 6
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 Central nervous system can be depressed by the use of which of the following:
Detailed Solution for Test: Polyhalogen Compounds (January 27) - Question 6

The correct answer is option A
Chloroform, or trichloromethane, is an organic compound with formula CHCl3. It is a colorless, sweet-smelling, dense liquid that is produced on a large scale as a precursor to PTFE. It is also a precursor to various refrigerants. It is one of the four chloromethanes and a trihalomethane. It is a powerful anesthetic, euphoriant, anxiolytic and sedative when inhaled or ingested.

Test: Polyhalogen Compounds (January 27) - Question 7
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 Paul Muller of Geigy Pharmaceuticals in Switzerland discovered the effectiveness of DDT as:
Detailed Solution for Test: Polyhalogen Compounds (January 27) - Question 7

The correct answer is Option A.
Paul Hermann Muller, Swiss chemist who received the Nobel Prize for Physiology or Medicine in 1948 for discovering the potent toxic effects on insects of DDT. With its chemical derivatives, DDT became the most widely used insecticide for more than 20 years and was a major factor in increased world food production and the suppression of insect-borne diseases.

Test: Polyhalogen Compounds (January 27) - Question 8
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Which one of the following is the correct formula of methylene dichloride?
Detailed Solution for Test: Polyhalogen Compounds (January 27) - Question 8

The correct answer is Option C.
The chemical formula of Dichloromethane or methylene dichloride is CH2Cl2.
There are four electron domains around the carbon atom, and the electron geometry is tetrahedral.

The hybridization that corresponds to a tetrahedral geometry is sp3

Test: Polyhalogen Compounds (January 27) - Question 9
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Depletion of Ozone is believed to increase:
Detailed Solution for Test: Polyhalogen Compounds (January 27) - Question 9

The correct answer is Option B
Ozone layer depletion increases the amount of UVB that reaches the Earth's surface. Because all sunlight contains some UVB, even with normal stratospheric ozone levels, it is always important to protect your skin and eyes from the sun.

Test: Polyhalogen Compounds (January 27) - Question 10
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Exposure to lower levels of a compound in air can lead to slightly impaired hearing and vision. Identify the compound.
Detailed Solution for Test: Polyhalogen Compounds (January 27) - Question 10

The correct answer is Option D.

Methylene chloride (Dichloromethane) Dichloromethane, also known as methylene chloride, is one of the polyhalogen compounds present in the form of solvent. Low levels of methylene chloride exposure in the air can cause slight hearing and vision impairment.
 

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