Engineer & Medical

Exam 2012 Chemistry question bank (Chemistry)

Practice 145 free Engineer & Medical Chemistry - Exam 2012 Chemistry questions with answers and step-by-step solutions.

Q1.

Chemiosmotic theory of $ATP$ synthesis in mitochondrion is based on

(A)
$K^+$ gradient
(B)
$H^+$ gradient
(C)
$Na^+$ gradient
(D)
$Ca^{2+}$ gradient
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Q2.

If $a, b$ and $c$ are three non-coplanar vectors and $p, q$ and $r$ are vectors defined by $p=\frac{b \times c}{[a b c]}, q=\frac{c \times a}{[a b c]}$ and $r=\frac{a \times b}{[a b c]}$,then the value of $(a+b) \cdot p+(b+c) \cdot q+(c+a) \cdot r$ is equal to

(A)
$0$
(B)
$1$
(C)
$2$
(D)
$3$
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