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1009 available questions

Chemistry · Question 141

The shape of ammonia (NHs) is A

  1. Trigonal bi pyramidal
  2. Trigonal pyramidal
  3. Trigonal plannar
  4. Square plannar
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Correct answer: B

Trigonal pyramidal

Chemistry · Question 142

Electrode Potential is developed when a metal is dipped into:

  1. An Acid
  2. A base
  3. In its own ions
  4. Water
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Correct answer: C

In its own ions

Chemistry · Question 143

Drawing a graph between concentration change with time gives a

  1. Straight line
  2. parabola
  3. Curve
  4. Scattered graph
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Correct answer: C

Curve

Chemistry · Question 144

What is the correct relation between λH and intermolecular forces?

  1. Higher λH weaker intermolecular forces
  2. Higher λH higher intermolecular forces
  3. Lower λH higher intermolecular forces
  4. None of these
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Correct answer: B

Higher λH higher intermolecular forces

Chemistry · Question 145

Acetone reacts with hydrogen cyanide (HCN) to form a cyanohydrin. It is an example of;

  1. Electrophilic addition
  2. Electrophilic substitution
  3. Nucleophilic substitution
  4. Nucleophilic addition
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Correct answer: D

Nucleophilic addition

Chemistry · Question 146

The densities of liquids are much ____________ than gases but ____________ to solids:

  1. smaller, closer
  2. greater, closer
  3. smaller, far away
  4. greater, far away
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Correct answer: B

greater, closer

Chemistry · Question 147

Which state of matter don’t have definite volume and occupy space:

  1. solids
  2. liquids
  3. gases
  4. all of these
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Correct answer: C

gases

Chemistry · Question 148

Which of the following alkyl halides has the highest boiling point?

  1. n-butyl iodide
  2. isobutyl iodide
  3. bopropy! Bromide
  4. n-propyl bromide
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Correct answer: A

n-butyl iodide

Chemistry · Question 149

The amount of products that is actually produced during a chemical reaction by
performing experiment is called

  1. Mole
  2. Actual yield
  3. Theoretical yield
  4. Percent yield
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Correct answer: B

Actual yield

English · Question 150

The cause of car accident can have been a malfunctioning brake pads,
[Choose the incorrect underlined item]

  1. The cause
  2. Can
  3. Have
  4. Malfunctioning
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Correct answer: B

Can