1
IIT-JEE 2008 Paper 1 Offline
MCQ (Single Correct Answer)
+3
-1

Under the same reaction conditions, initial concentration of 1.386 mol dm$$^{-3}$$ of a substance becomes half in 40 seconds and 20 seconds through first order and zero order kinetics, respectively. Ratio $$\left( {{{{k_1}} \over {{k_0}}}} \right)$$ of the rate constants for first order ($$k_1$$) and zero order ($$k_0$$) of the reactions is:

A
0.5 mol$$^{-1}$$ dm$$^3$$
B
1.0 mol dm$$^{-3}$$
C
1.5 mol dm$$^{-3}$$
D
2.0 mol$$^{-1}$$ dm$$^3$$
2
IIT-JEE 2008 Paper 1 Offline
MCQ (Single Correct Answer)
+3
-1

2.5 mL of $$\frac{2}{5}$$M weak monoacidic base (K$$_b$$ = 1 $$\times$$ 10$$^{-12}$$ at 25$$^\circ$$C) is titrated with $$\frac{2}{15}$$M HCl in water at 25$$^\circ$$C. The concentration of H$$^+$$ at equivalence point is (K$$_w$$ = 1 $$\times$$ 10$$^{-14}$$ at 25$$^\circ$$C).

A
3.7 $$\times$$ 10$$^{-13}$$ M
B
3.2 $$\times$$ 10$$^{-7}$$ M
C
3.2 $$\times$$ 10$$^{-2}$$ M
D
2.7 $$\times$$ 10$$^{-2}$$ M
3
IIT-JEE 2008 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-2

The correct statement(s) about the compound given below is(are):

IIT-JEE 2008 Paper 1 Offline Chemistry - Haloalkanes and Haloarenes Question 3 English

A
The compound is optically active.
B
The compound possesses centre of symmetry.
C
The compound possesses plane of symmetry.
D
The compound possesses axis of symmetry.
4
IIT-JEE 2008 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-2

The correct statement(s) concerning the structures E, F and G is(are) :

IIT-JEE 2008 Paper 1 Offline Chemistry - Basics of Organic Chemistry Question 5 English

A
E, F and G are resonance structures.
B
E, F and E, G are tautomers.
C
F and G are geometrical isomers.
D
F and G are diasteromers.
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