(Quiz)
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26. The organic chloro compound, which shows
complete stereochemical inversion during a SN2 reaction , is
(1) (CH3)3CCl (2) (CH3)2CHCl
(3) CH3Cl (4) (C2H5)2CHCl Ans. [3]
(Quiz)
: AIEEE 2008 EXAMINATION PAPER Q&A
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51. While measuring the speed of sound by
performing a resonance column experiment, a student gets the
first resonance condition at a column length of 18 cm during winter. Repeating
the same experiment
during summer, she measures the column length to be x cm for the second
resonance. Then
(1) x > 54 (2) 54 > x > 36
(3) 36 > x > 18 (4) 18 > x
(Quiz)
: AIEEE 2008 EXAMINATION PAPER Q&A
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76. Let a, b, c be any real numbers. Suppose
that there are real numbers x, y, z not all zero such that
x = cy + bz, y = az + cx, and z = bx + ay. Then a2 + b2 + c2 + 2abc is equal to
(1) –1 (2) 0
(3) 1 (4) 2 Ans. [3]