The vapour pressure of pure liquids A and B are 450 and 700 mm Hg respectively at 300 K. If total vapour pressure of solution of A and B is 600 mm Hg then find mole fraction of B in vapour phase (A) 0

Question

The vapour pressure of pure liquids A and B are 450 and 700 mm Hg respectively at 300 K. If total vapour pressure of solution of A and B is 600 mm Hg then find mole fraction of B in vapour phase

(A) 0.3
(B) 0.4
(C) 0.6
(D) 0.7 (1) 0.3 (2) 0.4 (3) 0.6 (4) 0.7 The time taken for 90% completion of a first order reaction is approximately. (1) 1.1 times that of half life (2) 2.2 times that of half life (3) 3.3 times that of half life (4) 4.4 times that of half life Correct about cyclobutadiene is - (1) it does not exist at room temperature (2) It shows dimerisation (3) it is not aromatic (4) All (1) CH≡CH (2) (3) CH ≡ C – C ≡ C – C ≡ CH (4) Both (2) & (3) (1) CH≡CH (2) (3) CH ≡ C – C ≡ C – C ≡ CH (4) Both (2) & (3) A & B are (1) Chain isomers (2) Position isomers (3) Functional isomers (4) Metamers 1001CMD303029230163 FINAL SHOT - MOCK TEST-1 SECTION - A (

Prashant Kotian · Accepted Answer

Correct answer: B

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