Download App

Biomolecules — Chemistry STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceChemistryBiomolecules1 Mark
Question
Two statements are given- one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below:
  1. Both Assertion (A) and Reason (R) are correct statements, and Reason (R) is the correct explanation of the Assertion (A).
  2. Both Assertion (A) and Reason (R) are correct statements, but Reason (R) is not the correct explanation of the Assertion (A).
  3. Assertion (A) is correct, but Reason (R) is incorrect statement.
  4. Assertion (A) is incorrect, but Reason (R) is correct statement.
Assertion (A): Sucrose is a non-reducing sugar.
Reason (R): Sucrose has glycosidic linkage.
✓

Answer

  1. Both Assertion (A) and Reason (R) are correct statements, but Reason (R) is not the correct explanation of the Assertion (A).

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Assertion (A) & Reason (B) MCQ" from Biomolecules→Biomolecules — all question types→Chemistry STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

In these questions, a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.
Assertion: Zinc becomes dull in moist air.
Reason: Zinc is coated by a thin film of its basic carbonate in moist air.
→
In these questions, a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.
  1. Assertion and reason both are correct statements and reason is correct explanation for assertion.
  2. Assertion and reason both are correct statements but reason is not correct explanation for assertion.
  3. Assertion is correct statement but reason is wrong statement.
  4. Assertion is wrong statement but reason is correct statement.
Assertion: Aniline is a weaker base than cyclohexylamine.
Reason: Aniline undergoes halogenation even in the absence of a catalyst.
→
In these questions, a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.
  1. If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
  2. If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
  3. If the Assertion is correct but Reason is incorrect.
  4. If both the Assertion and Reason are incorrect.
Assertion : The resistivity for a substance is its resistance when it is one meter long and its area of cross section is one square meter.
Reason : The SI units of resistivity is ohm metre ( m).
→
Note: In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.
Assertion: Phenol forms $2, 4, 6-$tribromophenol on treatment with $Br_2$ in carbon disulphide at $273K.$
Reason: Bromine polarises in carbon disulphide.
→
Two statements are given- one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below:
  1. Both Assertion (A) and Reason (R) are correct statements, and Reason (R) is the correct explanation of the Assertion (A).
  2. Both Assertion (A) and Reason (R) are correct statements, but Reason (R) is not the correct explanation of the Assertion (A).
  3. Assertion (A) is correct, but Reason (R) is incorrect statement.
  4. Assertion (A) is incorrect, but Reason (R) is correct statement.
Assertion (A): Sucrose is a non-reducing sugar.
Reason (R): Reducing groups of glucose and fructose are involved in glycosidic bond formation.
→
In these questions, a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.
  1. Assertion and reason both are correct statements and reason is correct explanation for assertion.
  2. Assertion and reason both are correct statements but reason is not correct explanation for assertion.
  3. Assertion is correct statement but reason is wrong statement.
  4. Assertion is wrong statement but reason is correct statement.
Assertion: The pressure exerted by the vapour in equilibrium with a liquid at a given temperature is called its vapour pressure.
Reason: If a non-volatile solute is added to a solvent to give a solution, the vapour pressure of the solution is found to be greater than the vapour pressure of the pure solvent.
→
In these questions, a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.
  1. Assertion and reason both are correct statements but the reason is the correct explanation for assertion.
  2. Assertion and reason both are correct statements but the reason is not a correct explanation for assertion.
  3. Assertion is a correct statement but the reason is a wrong statement.
  4. Assertion is a wrong statement but the reason is correct
Assertion: Molecular mass of benzoic acid when determined by colligative properties is found high.
Reason: Dimerization of benzoic acid.
→
Assertion $(A): 4-$nitrophenol is more acidic than $2, 4, 6-$trinitrophenol.
Reason $(R):$ Phenol is a weaker acid than carbonic acid.
→
In these questions, a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.
Assertion: Aqueous solution of potassium ferrocyanide does not give the test of iron $(II).$
Reason: Potassium ferrocyanide is not poisonous like potassium cyanide.
→
In these questions, a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.
  1. Assertion and reason both are correct statements and reason is correct explanation for assertion.
  2. Assertion and reason both are correct statements but reason is not correct explanation for assertion.
  3. Assertion is correct statement but reason is wrong statement.
  4. Assertion is wrong statement but reason is correct statement.
Assertion: Aryl halide gives a mixture of o-and p-products.
Reason: Aryl halides undergo electrophilic substitutions more readily than benzene.
→