AIEEE Chemistry Test 2 [Test]

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AIEEE Chemistry Test 2

In an aqueous solution of volume 500 ml, when the reaction of $2Ag^+Cu \leftrightharpoons Cu^{2+}+2Ag$ reached equilibrium, the $[Cu^{2+}]$ was x M. When 500 ml of water is further added, at the equilibrium $[Cu^{2+}]$ will be

Answers

Correct	Answer Text
	between x M and x/2 M
	x M
	2x M
	less than x/2 M

Question

For the reaction:

$(a) \quad M^{x+}+MnO_4^ ---- MO_3^-$ $+ Mn^{2+}+ \frac {1}{2}O_2$ , if one mole of MnO_4^-

oxidises 1.67 moles of $M^{x+}$ to MO_3^-

, then the value of x in the reaction is

Answers

Correct	Answer Text
	5
	1
	2
	3

Question

The solubility product of Ag_2CrO_4

is $32*10^{-12}$ . What is the concentration of $CrO_4^{2-}$ ions in that solution in $(g \quad ions \quad L^{-1})$ .

Answers

Correct	Answer Text
	$8*10^{-8}$
	$8*10^{-4}$
	$16*10^{-4}$
	$2*10^{-4}$

Question

When strongly heated, orthoboric acid gives

Answers

Correct	Answer Text



	B

Question

In $PO_4^{3-}$ ion, the formal charge on each oxygen atom and P - O

bond order respectively are

Answers

Correct	Answer Text
	-3, 1.25
	0.75, 1.25
	.75, 0.6
	.75, 1.0

Question

10 g of a mixture of hexane and ethanol are reacted with Na- metal to give 200 ml of H_2

at $27^{\circ}C$ and 760 mm pressure. The % of ethanol in mixture is

Answers

Correct	Answer Text
	7.475%
	73.89%
	81.65%
	26.18%

Question

50 g of

when treated with 60 ml of 20 N HCL at 300 K and 4 atm produces

Answers

Correct	Answer Text
	$22 \quad g \quad CO_2$
	$11 \quad g \quad CO_2$
	$44 \quad g \quad CO_2$
	$3 \quad L \quad CO_2$

Question

A and B are two different chemical species undergoing first order decomposition with rate constants k_A

and

which are in the ratio 3 : 2 in magnitude. If the initial concentration of A and B are in the ratio (C_0)_A : (C_0)_B :: 3 : 2

, what would be the ratio of concentration C_A, C_B

after three half lives of A?

Answers

Correct	Answer Text
	2 : 1
	1 : 1
	3 : 4
	1 : 2

Question

What is the effect of addition of KCl on solubility of AgNO_3

solution?

Answers

Correct	Answer Text
	decreases
	at first increases then it decreases
	remains unchanged
	increases

Question

A mixture of carbonates of two bivalent metals contains 13.6% of one metal. If 2.5 g of the mixture liberates 1.33 g CO_2

, the % by weight of the other metal is

Answers

Correct	Answer Text
	13.65
	13.84
	12.24
	15.52

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