GATE (PG Engineering) Chemistry Mock Test
3 free timed sets · 111 questions · 0 easy / 0 moderate / 111 hard · solutions for every question
All Chemistry sets
Sample Chemistry questions
1. A buffer is made from equal concentrations of a weak acid and its conjugate base. Doubling the volume of the buffer solution by adding water has what effect on its pH?
- (A) It has little effect.
- (B) It significantly decreases the pH.
- (C) It changes the pH asymptotically to the pKa of the acid.
- (D) It significantly increases the pH.
Show answer
(A) It has little effect.. Correct answer: It has little effect..
2. Considering 0.1 M aqueous solutions of each of the following, which solution has the lowest pH?
- (A) NaCl
- (B) Na2S
- (C) Na3PO4
- (D) Na2CO3
Show answer
(A) NaCl. Correct answer: NaCl.
3. A 1 M solution of TEMPO in chloroform at room temperature shows broader EPR spectrum than that of a 1 mM solution. Which sentence describes this phenomenon most accurately?
- (A) in the more concentrated solution, the lines are broadened due to the dipole-dipole interaction between the TEMPO molecules
- (B) in the more concentrated solution, the lines are broadened due to the exchange interaction between the TEMPO molecules
- (C) in the more concentrated solution, the lines are broadened by the slow tumbling of TEMPO molecules
- (D) in the more concentrated solution, the lines are broadened by the hyperfine interaction between the TEMPO molecules
Show answer
(B) in the more concentrated solution, the lines are broadened due to the exchange interaction between the TEMPO molecules. Correct answer: in the more concentrated solution, the lines are broadened due to the exchange interaction between the TEMPO molecules.
GATE (PG Engineering) Chemistry — FAQs
Is the GATE (PG Engineering) Chemistry mock test free?
Yes. All 3 Chemistry sets are free, need no signup, and give instant scores with a solution for every question.
How many Chemistry questions are there for GATE (PG Engineering)?
111 questions across 3 sets: 0 easy, 0 moderate and 111 hard.
Will I get the same questions again?
No. Each attempt draws a fresh random subset, shuffles the order and options, and prefers questions you have not seen on this device. The Surprise Set draws from the whole subject pool.
Can I choose difficulty and timer?
Yes — pick Easy, Moderate, Hard or Mixed, and choose no timer, 10 or 20 minutes, or the real exam pace.