Analogy | Reasoning Classes| CGL RRB NTPC GROUP D Reasoning | Ratio Proportion || #shorts

Reasons For Law Of Variable Proportion

Give reasons for the following statements: (i) Variable factor proportions obtain in the short run. (ii) Fixed factor proportions obtain in the long run.

Assertion: Claspers of certilage fishes are analogous to penis of human male Reason: Both act as copulatory organs and transfer the sperms into female

(a) If both the assertion and reason are true and reason is a true explanation of the assertion. (b) If both the assertion and reason are true but the reason is not the correct explanation of assertion. (c) If the assertion is true but reason is false. (d) If assertion is false but reason is true. Q. Assertion: Oxidation of 1-nitronaphthalene gives o-nitrophthalic acid whereas 1-amino naphthalene on oxidation gives phthalic acid. Reason: An amino group attached to the benzene ring makes it resistant to oxidation whereas nito group makes the benzene ring susceptible to oxidation.

In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as (a) If both assertion and reason are true and reason is the correct explanation of assertion. (b) If both assertion and reason are true but reason is not the correct explanation of assertion. (c ) If assertion is true but reason is false. (d) If assertion and reason are false. Q. Assertion: A large soap bubble expands while a small bubble shrinks, when they are connected to each other by a capillary tube. Reason: The excess pressure inside bubble (or drop) is inversely proportional to the radius.

Direction: Read the following information carefully and answer the following questions. Statement I- There are 3 groups of students X, Y and Z and they study in different classes A, B and C. Number of students in class A is 120. Statement II- Number of students in class C is 80% of total number of students in class A and class B. Number of group X students in class A is 1/3rd of total number of students in class A. Total number of group X and group Y students in class B is 40. Statement III- Ratio of group Y and group Z students in class A is 3 : 1. Ratio of group X and group Y students in class B is 3 : 1. Total number of students in class B is 250% of total number of students of group X and group Y. Statement IV- Ratio of group X, group Y and group Z students in class C is 3 : 5 : 3 Find the ratio between group X and group Z students in class B.

(a) If both the assertion and reason are true and reason is a true explanation of the assertion. (b) If both the assertion and reason are true but the reason is not the correct explanation of assertion. (c) If the assertion is true but reason is false. (d) If assertion is false but reason is true. Q. Assertion: nitration of aniline can be conveniently done by protecting the amino group by acetylation. Reason. Acetylation increases the electron density in the benzene ring.

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion of the assertion. (b) If both assertion and reason are true but reason is not the correct explanation of the assertion. (c) If assertion is true but reason is false. (d) If assertion is false but reason is true. Q. Assertion: M-Methoxyaniline (m-anisidine) is a weaker base than p-methoxyaniline (p-anisidine). Reason: At m-position methoxy group can exert only +R- effect but not -I effect.