Explore topic-wise InterviewSolutions in Class 11.

This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your Class 11 knowledge and support exam preparation. Choose a topic below to get started.

1.

Match the List-I with List-II and choose the correct answer from the codes: A. `{:(A,B,C,D),(1,2,3,4):}`B. `{:(A,B,C,D),(2,3,1,4):}`C. `{:(A,B,C,D),(4,3,2,1):}`D. `{:(A,B,C,D),(3,2,4,1):}`

Answer» Correct Answer - D
Discussion
2.

Match the List-I with List-II and select the correct answer using the options given below the lists: A. `"I-4 II-1 III-2 IV-3"`B. `"I-2 II-3 III-4 IV-1"`C. `"I-3 II-1 III-2 IV-4"`D. `"I-1 II-2 III-3 IV-4"`

Answer» Correct Answer - A
Discussion
3.

(A) In general phenolphthalein is used as an indicator for the titration of weak acid `(CH_(3)COOH)` and strong base (NaOH). (R) At equivalence point solution is basic.A. Both (R) and (A) are true and reason is the correct explanation of assertion.B. Both (R) and (A) are true but reason is not correct explanation of assertionC. Assertion (A) is true but reason (R) is falseD. Assertion (A) is false but reason (R) is true

Answer» Correct Answer - B
Discussion
4.

Match the List-1 (solutions of salts) with List-II (pH of the solutions) and select the correct answer using the codes given below the lists: A. `{:(A,B,C,D),(4,3,2,1):}`B. `{:(A,B,C,D),(1,2,3,4):}`C. `{:(A,B,C,D),(2,3,4,1):}`D. `{:(A,B,C,D),(3,2,1,4):}`

Answer» Correct Answer - A
Discussion
5.

Efficiency of energy conversion in nuclear fission of uranium and nuclear fusion of hydrogen are respectively:A. `0.09%, 0.35%`B. `0.35%, 0.09%`C. `0.09%, 0.09%`D. `0.35%, 0.35%`

Answer» Correct Answer - A
Discussion
6.

(A) Emitted radiations lie in visible region when electrons jump from higher level to n=2 in hydrogen. (R) Balmer series radiations belong to visible range in H-atoms.A. Both (R) and (A) are true and reason is the correct explanation of assertion.B. Both (R) and (A) are true but reason is not correct explanation of assertionC. Assertion (A) is true but reason (R) is falseD. Assertion (A) is false but reason (R) is true

Answer» Correct Answer - A
Discussion
7.

Match the List-I (enzymes) with List-II (metals) and select the correct answer using the codes given below the lists: A. `{:(A,B,C,D),(1,2,4,3):}`B. `{:(A,B,C,D),(2,1,3,4):}`C. `{:(A,B,C,D),(2,1,4,3):}`D. `{:(A,B,C,D),(1,2,3,4):}`

Answer» Correct Answer - B
Discussion
8.

(A) 3s, 3p and 3d subshells in hydrogen have same energy. (R) Energy of subshells in hydrogen atom, depends on the principle quantum number (n) and azimuthal quantum number (l).A. Both (R) and (A) are true and reason is the correct explanation of assertion.B. Both (R) and (A) are true but reason is not correct explanation of assertionC. Assertion (A) is true but reason (R) is falseD. Assertion (A) is false but reason (R) is true

Answer» Correct Answer - C
Discussion
9.

Magnetic susceptibility of a paramagnetic substance:A. is independent of temperatureB. increases with decrease of temperatureC. attain the maxima at null pointD. increases rapidly above Curie temperature

Answer» Correct Answer - C
Discussion
10.

Select the correct condition (s) for spontaneity:A. `(del G)_(T,P) lt 0`B. `(del H)_(S,P) lt 0`C. `(del U)_(S,V) lt 0`D. All of these

Answer» Correct Answer - D
Discussion
11.

Heat is supplied to a certain homogeneous sample of matter, at a uniform rate. Its temperature is plotted against time, as shown Which of the following conclusions can be drawn? (i) Its specific heat capacity is greater in the solid state than the liquid state. (ii) Its specific heat capacity is greater in the liquid state than in the solid state. (iii) Its latent heat of vaporization is greater than its latent heat of fusion. (iv) Its latent heat of vaporization is smaller than its latent heat of fusionA. Its specific heat capacity is greater in the solid state than in the liquid state.B. Its specific heat capacity is smaller in the solid state than in the liquid state.C. Its latent heat of vaporization is greater than its latent heat of fusion.D. Its latent heat of vaporization is smaller than its latent heat of fusion.

Answer» Correct Answer - C
Discussion
12.

This graph represents: A. first order reactionB. zero order reactionC. second order reactionD. third order reaction

Answer» Correct Answer - D
Discussion