Question
Assertion (A): Phenol is commonly used as a
disinfectant. Reason (R): Phenol is not harmful to living human tissues even at a very high concentration. The following Two (7 & 8) items consist of two statements, one labelled the 'Assertion (A) and the other labelled the 'Reason (R)'. You are to examine these two statements carefully and decide if the Assertion (A) and the Reason (R) are individually true and if so, whether the Reason (R) is a correct explanation of the Assertion (A). Select your answers to these items using the Codes given. below and mark your answer-sheet accordinglySolution
Phenol is an antiseptic and disinfectant used in a variety of settings. • Phenol is an antiseptic and disinfectant. It is active against a wide range of micro-organisms including some fungi and viruses but is only slowly effective against spores. Phenol has been used to disinfect skin and to relieve itching. Hence Assertion is true. • Exposure to phenol may cause irritation to the skin, eyes, nose, throat, and nervous system. • Some symptoms of exposure to phenol are weight loss, weakness, exhaustion, muscle aches, and pain. Severe exposure can cause liver and/or kidney damage, skin burns, tremor, convulsions, and twitching. Hence Reason is false.
In the question, assuming the given statements to be true, find which of the conclusion (s) among given three conclusions is/are definitely true and th...
Statements: V ≤ R ≥ Q; R ≤ N < Y; I > Y ≤ S
Conclusions:
I. V ≤ S
II. I > Q
III. S > N
Statements: A = B ≥ C > D, F > G = H ≥ J, D ≥ E ≥ I > F
Conclusions:
I. D ≥ H
II. I > J
III. G < A
Statements: I > J = K ≥ M; D ≥ F ≤ E = I
Conclusions:
I. M < E
II. D ≥ MStatements:
A = B ≤ Y < Z; P ≤ I < A; M ≤ Y < N
Conclusions:
I). Â M < Z
II). Â P < Y
III). Â N > A
...Statements: R ≥ J > V= A > S ≤ P > G < H
Conclusions: I. R > PÂ Â Â II. H < J
Statements: P < Q ≤ R ≤ S; P > T = V ≥ X; S ≤ W = Y < U
Conclusions:
I. U > R
II. W > X
III. Q < Y
Statements: O > Q < R > P = U ≥ S > T ≥ N
Conclusion
I: S < R
II: U > N
Statements: B > A = D ≥ C = I ≥ H > E > F > G
Conclusions:
I. C ≥ E
II. E > C
III. A ≥ DA statement is given, followed by two conclusions I and II. Decide which of the given conclusions is/are true based on the statement. Â
Statemen...
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