AIEEE Chemistry Test 1

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ACME Education

A test by Anurag Chandra.

Test Questions

Question

12 L of

and 11.2 L of Cl_2

are mixed and exploded. The composition volume of mixture is

Answers

Correct	Answer Text
	22.4 L HCl
	0.8 L and 22.4 L HCl
	24 L of HCl
	0.8 L and 20.8 L HCl

Question

2.8 g of

, 0.40 g of H_2

and 6.4 g of O_2

are placed in a container of 1.0 L capacity at $27^{\circ}C$ . The total pressure in the container is

Answers

Correct	Answer Text
	24.6 atm
	12.3 atm
	1.123 atm
	6.15 atm

Question

The correct order of increasing radii of the ions $Br^-, F^-, O^{2-}$ and $S^{2-}$ is as follows

Answers

Correct	Answer Text
	$F^- < O^{2-} < S^{2-} <Br^-$
	$F^- <Br^- < O^{2-} < S^{2-}$
	$Br^- < F^- < O^{2-} < S^{2-}$
	$S^{2-} < O^{2-} < F^- < Br^-$

Question

The half-life of $Th^{232}$ is $1.4 * 10^{10}$ years and that of its daughter element $Ra^{228}$ is 7 years. The weight of $radium^{228}$ in equilibrium with 1 gm of $Th^{232}$ is

Answers

Correct	Answer Text
	$1*10^{-8}$ gm
	$1*10^{-10}$ gm
	$5*10^{-6}$ gm
	$5*10^{-10}$ gm

Question

Arrange the following in increasing order of boiling points n-butane, n-butanol, n-butylchloride, isobutane

Answers

Correct	Answer Text

Question

pH of $10^{-8}m$ acid solution is

Answers

Correct	Answer Text
	8.0
	6.96
	7.63
	1.0

Question

If $P_{\circ}$ and P_s

are the vapor pressures of the solvent and solution respectively, n_1

and

are the mole fractions of the solvent and solute respectively, then

Answers

Correct	Answer Text
	$P_s=P_{\circ}n_1$
	$P_{\circ}=P_sn_2$
	$P_s=P_{\circ}n_2$
	$P_s=P_{\circ}(n_1ln_2)$

Question

The pH of a solution obtained by mixing 50 ml of 0.4 M HCl and 50 ml of 0.2 M NaOH would be

Answers

Correct	Answer Text
	3
	1
	4
	2

Question

The standard reduction potentials of $Fe^{2+}/Fe$ and $Cu^{2+}/Cu$ electrodes are -0.44 and 0.34 volts respectively. Then

Answers

Correct	Answer Text
	iron will reduce Cu ions
	copper will reduce $Fe^{2+}$ ions
	$Cu^{2+}$ ions will oxidise iron
	iron will oxidise copper metal

Question

The half-life period of a radioactive element is 40 days. If 32 grams of this element are stored for 160 days, the weight of the element that would remain in gram is

Answers