Question
Which of the following is a chemical
change?Solution
Rusting of iron is a chemical change because it forms a new substance (iron oxide) through a chemical reaction with oxygen and moisture. Heating and magnetization are physical changes as they don't alter the composition.
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...
Statement: D < I < J = M = NÂ `>=` R > X
  Conclusion: I. J > X           II. D < N
...Statements: I < W = T ≤ H = C ≤ Y, Y > N ≥ E
Conclusions:
I. Y ≥ W
II. H > E
III. N < T
Statements: A ≤ B > C ≥ D > F, B ≤ E > G, D < H
Conclusions: I. G ≥ A
II. H > F
Statements: E # L, L @ U, U $ N, N % K
Conclusions: I. K @ U II. K % U III. E @ U
...Statements: B & A, A # O, O $ Z, Z @ S
Conclusions:
I. Z $ A
II. Z & A
Statements: U ≤ T < V; W < V; S = T < R; X < W = Y < Z
Conclusions:
I. R > U
II. X < S
III. T < Z
Statements: E = Q > R = Y ≤ Z = N; K = Y; L > R
Conclusion: I. N > L II. N ≤ L
In which of these expression ‘L>A’ is definitely True?
Which of the following expressions will be true if the expression ‘N ≥ O > P ≥ Q’ is definitely true?
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