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Chemistry GATE - 7

GATE Chemistry practice test covering inorganic, organic, physical chemistry, and biochemistry

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

In molecular ion ICl2+, the geometrical arrangement of orbital and shape are

  1. tetrahedral geometry, bent shape
  2. tetrahedral geometry, pyramidal shape
  3. trigonal bipyramidal geometry, linear shape
  4. trigonal bipyramidal geometry, bent shape
  5. tetrahedral geometry, T-shape
Question 2 Multiple Choice (Single Answer)

Directions: In the question given below, there are two statements labeled as Assertion (A) and Reason (R). Mark your answer as per the codes provided below:
Assertion: CO and NO both combine with haemoglobin.
Reason: Both have equal affinity for haemoglobin.

  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.
  5. Both A and R are false.
Question 3 Multiple Choice (Single Answer)

The spectroscopic term symbol for the ground state of a fluorine atom is

  1. 5P0
  2. 2P0
  3. 2P1/2
  4. 2P3/2
  5. 3P0
Question 4 Multiple Choice (Single Answer)

If E is the energy of the combining atomic orbitals, E1 and E2 are the energies of the antibonding and bonding molecular orbitals formed, then

  1. E-E2 < E1-E
  2. E-E2 = E1-E
  3. E-E2 > E-E1
  4. E-E2 > E1-E
  5. Any one of these is possible
Question 5 Multiple Choice (Single Answer)

The ratio of σ- and π-bonds in carbon suboxide is

  1. 2 : 3
  2. 2 : 1
  3. 1 : 2
  4. 3 : 2
  5. 1 : 1
Question 6 Multiple Choice (Single Answer)

Which of the following is not an example of β-lactam antibiotic?

  1. Terramycin
  2. Amoxicillin
  3. Ampicillin
  4. Penicillin
  5. Cephalosporin
Question 7 Multiple Choice (Single Answer)

Which of the statements is/are wrong?

  1. Halogens are all coloured because absorption of visible light by their molecules results in the excitation of the outer electrons to higher energy levels.
  2. Halogens are all coloured because the small F2 molecules absorb high energy violet radiation and appear yellow.
  3. Halogens are all coloured because larger I2 molecules absorb low energy yellow and green radiations and appear violet in colour.
  4. Options 2 and 3
  5. Halogens are all coloured because the excitation energy required by the small fluorine atoms is smaller than that required by the large iodine atoms.
Question 8 Multiple Choice (Single Answer)

Which of the following enzymes helps in hydrolysis of the protein into α-amino acids?
A. Pepsin
B. Carbonic anhydrase
C. Trypsin
D. Chymotrypsin

  1. Only A
  2. Only B
  3. Only B and D
  4. Only D
  5. Only A, C and D
Question 9 Multiple Choice (Single Answer)

Which of the following enzymes is used to check heart attacks due to blood clot formation in the coronary artery?

  1. RNA polymerase
  2. DNA polymerase
  3. Phenylalanine hydroxylase
  4. Tyrosinase
  5. Streptokinase
Question 10 Multiple Choice (Single Answer)

In enzymatic fermentation, C2H5OH and CO2 are produced from which of the following sugars?
I. Glucose
II. Invert sugar
III. Fructose

  1. Only I and II
  2. Only I and III
  3. Only II and III
  4. All of these
  5. None of these
Question 11 Multiple Choice (Single Answer)

Match the List I with List II and select the correct answer using the codes given below
List I 
        </strong>|<strong>List II</strong>|

|A. (dG / dP)T|1. V|
|B. (dG / dT)P|2. T|
|C. (dH / dS)P|3. –S|
|D. (dT / dP)H|4. P|
| |5. μJT|

  1. A - 5, B - 4, C - 3, D - 2
  2. A - 1, B - 3, C - 2, D - 5
  3. A - 2, B - 5, C - 4, D - 3
  4. A - 4, B - 2, C - 1, D - 5
  5. A - 3, B - 1, C - 5, D - 4
Question 12 Multiple Choice (Single Answer)

Directions: In the question given below, there are two statements labeled as Assertion (A) and Reason (R). Mark your answer as per the codes provided below:
Assertion: Chlorination of ethylbenzene with Cl2 in presence of heat and light mainly yields 1-chloro-2-phenylethane.
Reason: The reaction occurs through intermediate formation of the radical, C6H5CH2C*H2.

  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.
  5. Both A and R are false.
Question 13 Multiple Choice (Single Answer)

Directions: In the question given below, there are two statements labeled as Assertion (A) and Reason (R). Mark your answer as per the codes provided below:
Assertion: Patient suffering from CO poisoning is kept in CO2 at a pressure of 2 atmospheres.
Reason: CO of carboxyhaemoglobin is replaced by CO2.

  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.
  5. Both A and R are false.
Question 14 Multiple Choice (Single Answer)

Hybridizations present in central atom of ICl5, BrCl2-, ClF2+, ClF4+ are respectively:

  1. sp3d2, sp3, sp3, sp3d3
  2. sp3d3, sp3d, sp3, sp3d2
  3. sp3d, sp2, sp, sp3d2
  4. sp3d3, sp3d, sp3d, dsp3
  5. d3sp3, sp3d, sp3, sp3d2
Question 15 Multiple Choice (Single Answer)

Match the column I (components) with column II (functions)
Column I 
        </strong>|<strong>Column II</strong>|

|A. RBC|1. Blood clotting|
|B. Fibrinogen|2. Maintenance of osmotic pressure of blood plasma|
|C. Saccharide|3. Transports of O2 from lungs to the tissues|
|D. Globulins|4. Transport of lipids as lipoproteins|
|E. Albumins|5. Source of energy|
|F. Blood platelets| |

  1. A - 1, B - 3, C - 5, D - 4, E - 2, F - 1
  2. A - 3, B - 1, C - 5, D - 4, E - 1, F - 2
  3. A - 3, B - 1, C - 4, D - 5, E - 2, F - 1
  4. A - 3, B - 1, C - 5, D - 4, E - 2, F - 1
  5. A - 3, B - 5, C - 1, D - 2, E - 4, F - 1
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