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Chemistry (Mixed Test)

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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following statements is/are correct?

A. Isomers are same compounds with different molecular formula.
R. Isomers have different arrangement of their constituent atoms in the space.

  1. Both A and R are true and R is the correct explanation of A.
  2. Both A and R are true but R is not the correct explanation of A.
  3. A is true but R is false.
  4. A is false but R is true.
Question 2 Multiple Choice (Single Answer)

Which of the following statements is/are correct?

A. metals are good conductors of heat and electricity.
R. Metals are malleable and ductile.

  1. Both A and R are true and R is the correct explanation of A.
  2. Both A and R are true but R is not the correct explanation of A.
  3. A is true but R is false.
  4. A is false but R is true.
Question 3 Multiple Choice (Single Answer)

Which of the following statements is/are correct?

A. Foam extinguisher is used to extinguish fire caused by electric short circuiting.
R. Electricity conducting materials cannot be used to extinguish fire caused by it.

  1. Both A and R are true and R is the correct explanation of A.
  2. Both A and R are true and R is not the correct explanation of A.
  3. A is true but R is false.
  4. A is false but R is true.
Question 4 Multiple Choice (Single Answer)

Which of the following statements is/are correct?

A. Sulphur is used in vulcanising of rubber.
R. Sulphur exists in many allotropic forms.

  1. Both A and R are true and R is the correct explanation of A.
  2. Both A and R are true but R is not the correct explanation of A.
  3. A is true but R is false.
  4. A is false but R is true.
Question 5 Multiple Choice (Single Answer)

Which of the following statements is/are correct?

A. Certain chemical reactions are driven by light.
R. Light may supply required energy to drive the reaction.

  1. Both A and R are true and R is the correct explanation of A.
  2. Both A and R are true but R is not the correct explanation of A.
  3. A is true but R is false.
  4. A is false but R is true.
Question 6 Multiple Choice (Single Answer)

Aspirin is

  1. an analgesic.
  2. an antipyretic.
  3. both analgesic and antipyretic.
  4. a hypnotic.
Question 7 Multiple Choice (Single Answer)

Matchstick's black material is mainly made up of

  1. yellow phosphorus.
  2. black phosphorus.
  3. charcoal.
  4. coke.
Question 8 Multiple Choice (Single Answer)

Trinitrotoluene (TNT) is a/an

  1. fertilizer.
  2. explosive.
  3. insecticide.
  4. fungicide.
Question 9 Multiple Choice (Single Answer)

Which of the following statements is/are correct?

A. In a chemical equation, the number and type of atoms on the left hand side must be equal to that on the right hand side.
R. Mass is conserved in a chemical reaction.

  1. Both A and R are true and R is the correct explanation of A.
  2. Both A and R are true but R is not the correct explanation of A.
  3. A is true but R is false.
  4. A is false but R is true.
Question 10 Multiple Choice (Single Answer)

The substance(s)/material(s) used as water softner is/are

  1. zeolites
  2. quartz
  3. asbestos
  4. gypsum
Question 11 Multiple Choice (Single Answer)

Which of the following statements is/are correct?

A. Organic compounds are compounds of carbon.
R. Carbohydrates and proteins are inorganic compounds.

  1. Both A and R are true and R is the correct explanation of A.
  2. Both A and R are true but R is not the correct explanation of A.
  3. A is true but R is false.
  4. A is false but R is true.
Question 12 Multiple Choice (Single Answer)

Threat of 'global warming' is increasing due to the increasing concentration of

  1. O3
  2. NO2
  3. SO2
  4. CO2
Question 13 Multiple Choice (Single Answer)

Protein responsible for blood clotting is

  1. albumin A
  2. globulin
  3. fibroin
  4. fibrinogen
Question 14 Multiple Choice (Single Answer)

The species that will not give positive test for CN¯ions is

  1. NaCN
  2. Ca(CN) 2
  3. CH3CN
  4. [Fe(H2O) 4 C12]CN
Question 15 Multiple Choice (Single Answer)

Chemically, insulin(a harmone) is a

  1. fat
  2. steroid
  3. protein
  4. carbohydrate
Question 16 Multiple Choice (Single Answer)

Blister copper is

  1. an ore of copper.
  2. pure copper.
  3. impure copper.
  4. an alloy of copper.
Question 17 Multiple Choice (Single Answer)

Polymeric material is

  1. arabinose
  2. cellulose
  3. xylose
  4. galactose
Question 18 Multiple Choice (Single Answer)

Goitre is caused by the deficiency of

  1. calcium
  2. iron
  3. phosphorus
  4. iodine
Question 19 Multiple Choice (Single Answer)

First synthetically prepared organic compound was

  1. glucose
  2. methane
  3. benzene
  4. urea
Question 20 Multiple Choice (Single Answer)

Cellophane used for wrapping is made up of

  1. glucose nitrate
  2. synthetic glucose
  3. glucose acetate
  4. regenerated glucose
Question 21 Multiple Choice (Single Answer)

The vitamin that contains a metal ion is

  1. vitamin A
  2. vitamin B12
  3. vitamin B6
  4. riboflavin
Question 22 Multiple Choice (Single Answer)

In breath analyzer for detecting DWI (driving while intoxicated),

I. compound used is potassium dichromate

II. safe limit is below 0.10% of alcohol

III. the alcohol content refers to the presence of alcohol in the liver
Choose the correct option.

  1. I and III are correct
  2. II and III are correct
  3. I and II are correct
  4. I, II and III are correct
Question 23 Multiple Choice (Single Answer)

Laughing gas is

  1. NO
  2. N2O3
  3. N2O
  4. N2O5
Question 24 Multiple Choice (Single Answer)

Table sugar is

  1. glucose
  2. sucrose
  3. maltose
  4. lactose
Question 25 Multiple Choice (Single Answer)

The nuclide used to detect brain tumours and thyroid defects is

  1. 131I53
  2. 60Co27
  3. 24Na11
  4. 14C6
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