30 Volume of H2O2 means
a) 30% H2O2
b)30 cm3 of the solution contains 1 gm of H2O2
c)1 cm3 of solution liberates 30 cm3 of O2 at STP
d) 30 cm3 of solution contains 1 mol of H2O2
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Assertion (A).H2O2 has higher boiling point than water Reason (R). The dipole moment of H2O2 is little more than that of H2O.
(B) If both assertion and reason are true, but reason is not the true explanation of the assertion.
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Assertion (A). The O – O bond length in H2O2 is shorter than that of O2F2. Reason (R). H2O2 is an ionic compound.
(D) If both assertion and reason are false.
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In a certain language, tir me sac means green and tasty, dic sac for means tomato is green,
(A) for tir dic In the first and second statements, the common code word is green and the common word is sac. So, green means sac. In the first and third...
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In a certain code, 256 means red colour chalk, 589 means green colour flower,
(B) In the first and second statements, the common digit is 5 and the common word is colour. So, 5 means colour. In the first and third statements, the common code...
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In a certain code, 256 means boys are good, 637 means amar is good, and 348 means lata is bad.
correct answer is (B) 7.
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If ÷ means +, - means ÷, × means - and + means ×, then ((32 x 8) - 8 x 2)/(4 + 18 x 8 + 9/1) = ?
(B) 1 correct answer is
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If a means ‘plus’ b means ‘minus’, c means ‘multiplied by’ and d means ‘divided by’ then 16c 12b 6d 2a 17 =?
The correct answer is (D) 206
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if P $ Q means P is the father of Q, P # Q means P is mother of Q, & P * Q means P is the sister of Q.
(D) The sex of Q is not given hence the exact relation ship b/w N & Q cannot be established.
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‘P + Q’ means ‘P is the brother of Q’, ‘P - Q means P is the mother of Q and ‘P × Q’ means ‘P is the sister
(B) M + K - R
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‘A + B’ means ‘A is the son of B’, ‘A - B’ means ‘A is the wife of B’.
(B) P × R ÷ Q
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