AIEEE Chemistry (2006)

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AIEEE Chemistry (2006)

Created by Quizmagic Team on Jan 09, 2013 06:43 PM

This quiz has 25 questions of AIEEE chemistry exam of year 2006. This quiz will be a good preparation for the competitive examination.

Top 5 Scores

	Avijit Bhunia	93 03:31
	Anonymous	91 01:01
	Anonymous	77 00:56
	karthik.narayan.mohan	36 00:38
	Anonymous	36 00:49

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Sample Questions

Question 1

Nickel (Z = 28) combines with a uninegative monodentate ligand X^–to form a paramagnetic complex [NiX₄]²^-. The number of unpaired electron(s) in the nickel and geometry of this complex ion are, respectively

one, square planar
two, tetrahedral
two, square planar
one, tetrahedral

Question 2

Resistance of a conductivity cell filled with a solution of an electrolyte of concentration 0.1 M is 100 Ω. The conductivity of this solution is 1.29 S m^–¹^. Resistance of the same cell when filled with 0.2 M of the same solution is 520Ω. The molar conductivity of 0.02 M solution of the electrolyte will be

124 × 10^–⁴S m²mol^–¹
12.4 × 10^–⁴S m²mol^–¹
1240 × 10^–⁴S m²mol^–¹
1.24 × 10^–⁴S m²mol^–¹

Question 3

Density of a 2.05 M solution of acetic acid in water is 1.02 g/mL. The molality of the solution is

1.14 mol kg^–¹
2.28 mol kg^–¹
3.28 mol kg^–¹
0.44 mol kg^–¹

Question 4

The ionic mobility of alkali metal ions in aqueous solution is maximum for

Na⁺
K⁺
Rb⁺
Li⁺

Question 5

18 g of glucose (C₆H₁₂O₆) is added to 178.2 g of water. The vapour pressure of water for this aqueous solution at 100^oC is

752.40 Torr
759.00 Torr
7.60 Torr
76.00 Torr

Question 6

(∆H−∆U) for the formation of carbon monoxide (CO) from its elements at 298 K is (R = 8.314 J K^–¹mol^–¹)

2477.57 J mol^–¹
–2477.57 J mol^–¹
–1238.78 J mol^–¹
1238.78 J mol^–¹

Question 7

How many EDTA (ethylenediaminetetraacetic acid) molecules are required to make an octahedral complex with a Ca²⁺ion?

Six
One
Three
Two

Question 8

Lanthanoid contraction is caused due to

the appreciable shielding on outer electrons by 4f electrons from the nuclear charge
the appreciable shielding on outer electrons by 5d electrons from the nuclear charge
the imperfect shielding on outer electrons by 4f electrons from the nuclear charge
the same effective nuclear charge from Ce to Lu

Question 9

Following statements regarding the periodic trends of chemical reactivity of the alkali metals and thehalogens are given. Which of these statements gives the correct picture?

In alkali metals the reactivity increases but in the halogens it decreases with increase in atomicnumber down the group
In both the alkali metals and the halogens the chemical reactivity decreases with increase inatomic number down the group
Chemical reactivity increases with increase in atomic number down the group in both the alkalimetals and halogens
The reactivity decreases in the alkali metals but increases in the halogens with increase in atomicnumber down the group

Question 10

The “spin-only” magnetic moment [in units of Bohr magneton,(µ_B)] of Ni²⁺in aqueous solution wouldbe (Atomic number of Ni = 28)

2.48
1.73
0
4.9000000000000004

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