2023 May 15 EAPCET Engineering Forenoon Chemistry Practice Test

This EAPCET Engineering Chemistry Practice Test was a previous year EAPCET exam conducted on 2023 May 15 Shift 1. This test consists of 40 objective type questions from both Intermediate First Year and Intermediate Second Year Chemistry. The questions are given in the same format as in the exam conducted by Andhra Pradesh (AP) EAPCET exam in the year 2023.

This test is completely free, and students can attempt as many times as needed and help students in preparing for EAMCET entrance tests and get admissions into various reputed colleges for Engineering in the state of Andhra Pradesh.

Test Instructions

Quick Test

(1 of 40) Vijayawada FM radio station broadcasts at frequency of 103.4MHz. The wavelength of the corresponding radio waves (in m) is

2.90
29.0
9.20
92.0

(2 of 40) The minimum number of quantum numbers required to specify an orbital in an atom is

(3 of 40)

Consider the following two statements

Statement I: Among $Mg$ , $Al$ , ${Mg}^{2 +}$ , ${Al}^{3 +}$ the one having smallest size is ${Al}^{3 +}$
Statement II: $Eu$ is having exceptionally high atomic radii among lanthanide elements

The correct answer is

Both statements I and II are correct
Both statements I and II are not correct
Statement I is correct but statement II not correct
Statement I is not correct but statement II is correct

(4 of 40) Identify the pair of elements with the highest and lowest electronegativity respectively

K and Rb
I and F
F and Fr
Fr and Li

(5 of 40) If the bond order in

C_{2}

is 'x' then the bond order in

B_{2}

and

O_{2}

, respectively are

$\frac{1}{2} x$ , $2 x$
$x, x$
$\frac{1}{2} x$ , $x$
$x, 2 x$

(6 of 40) Identify incorrectly matched set from the following

Molecules with incomplete octet - ${BeH}_{2}$ , ${BCl}_{3}$
Polar molecules - ${BF}_{3}$ , ${CCl}_{4}$
Molecules with expanded octet - ${PCl}_{5}$ , ${SF}_{6}$
Odd electron molecules - $NO$ , ${NO}_{2}$

(7 of 40)

An ideal gas (X) present in a vessel of volume V L exerted a pressure of 16.4atm at 200K. What is its concentration in $mol L^{- 1}$ ?

(Given R= 0.082 L atm

{mol}^{- 1} K^{- 1}

)

0.50
0.25
1.00
1.50

(8 of 40)

A 100L cylinder containing $H_{2}$ exerted a pressure of 4atm at 300K. It was accidentally opened and some $H_{2}$ was escaped. When it was closed, it exerted a pressure of 3atm at 300K. The number of moles of $H_{2}$ remaining in the cylinder is equal to

(Assume

H_{2}

as an ideal gas; R=gas constant)

$\frac{1}{2 R}$
$R$
$\frac{1}{R}$
$2 R$

(9 of 40)

Observe the following reaction

${Cl}_{2} (g) + 2 {OH}^{-} (aq) \to {ClO}^{-} (aq) + {Cl}^{-} (aq) + H_{2} O (l)$

Identify the correct statements about this reaction

{Cl}_{2} (g)

is oxidized to

{ClO}^{-} (aq)

II.

{Cl}_{2} (g)

is oxidized to

{Cl}^{-} (aq)

III.

{Cl}_{2} (g)

is reduced to

{ClO}^{-} (aq)

IV.

{Cl}_{2} (g)

is reduced to

{Cl}^{-} (aq)

I, IV only
I, III only
I, II, IV only
II, III only

(10 of 40) If the standard enthalpy change

(∆_{r} H^{θ})

for a certain reaction at 298K and constant pressure is

- 1860 kJ {mol}^{- 1}

, the standard entropy change

(∆_{sys} S^{θ})

of the same reaction is

- 550 J K^{- 1} {mol}^{- 1}

, which one of the following statements is correct?

$(∆_{sys} S^{θ}) + ∆_{surr} S^{θ} = - 7692 J {mol}^{- 1} K^{- 1}$ , the reaction is spontaneous
$(∆_{sys} S^{θ}) + ∆_{surr} S^{θ} = - 5692 J {mol}^{- 1} K^{- 1}$ , the reaction is non- spontaneous
$(∆_{sys} S^{θ}) + ∆_{surr} S^{θ} = + 5692 J {mol}^{- 1} K^{- 1}$ , the reaction is spontaneous
$(∆_{sys} S^{θ}) + ∆_{surr} S^{θ} = + 7692 J {mol}^{- 1} K^{- 1}$ , the reaction is non- spontaneous

2023 May 15 EAPCET Engineering Forenoon Chemistry Practice Test

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