2023 May 18 EAPCET Engineering Forenoon Chemistry Practice Test

Test Description

This EAPCET Engineering Chemistry Practice Test was a previous year EAPCET exam conducted on 2023 May 18 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

The test contains 40 multiple-choice questions.
Total time for the test is 0h 45m.
Each question carries equal marks.
There is no negative marking for wrong answers.
Use of calculator is not allowed.
Do not refresh the page during the test.
Make sure you have a stable internet connection.

Quick Test

(1 of 40)

The de Broglie wavelength of a particle is 1000 mm. What is its momentum?

(h =

6.6 \times 10^{- 34} Js

)

$6.6 \times 10^{- 25} J s m^{- 1}$
$6.6 \times 10^{- 25} J s m$
$6.6 \times 10^{- 28} J s m^{- 1}$
$6.6 \times 10^{- 26} J s m$

(2 of 40)

If the uncertainty in velocity of electron ( $∆ v$ ) is 0.1 m/s, the uncertainty in its position ( $∆ x$ ) is

(given

m_{e} = 9.1 \times 10^{- 31} kg

)

$2.02 \times 10^{- 4} m$
$4.04 \times 10^{- 4} m$
$5.79 \times 10^{- 4} m$
$8.42 \times 10^{- 4} m$

(3 of 40)

The number of following pairs of elements which exhibit diagonal relationship is :

I.B & Si
II. Be & Al
III. Li & Mg
IV. Al & S

(4 of 40) The correct order of atomic radii of B, Be, N and C is

Be < B < C < N
N < B < C < Be
N < C < B < Be
Be < C < B < N

(5 of 40)

Match the following.

List I (Molecules)	List II (Dipolemoment $μ,$ D)
A. $H_{2} O$	I. 0
B. ${BF}_{3}$	II. 0.23
C. ${NH}_{3}$	III. 1.47
D. ${NF}_{3}$	IV. 1.85

The correct answer is

A-IV, B-I, C-II, D-III
A-IV, B-I, C-III, D-II
A-IV, B-III, C-I, D-II
A-III, B-IV, C-II, D-I

(6 of 40) Which of the following is the correct order of increasing number of lone pair of electrons on the central atom?

${IF}_{5} < {XeF}_{2} < {IF}_{7} < {ClF}_{3}$
${IF}_{7} < {ClF}_{3} < {XeF}_{2} < {IF}_{5}$
${IF}_{7} < {XeF}_{2} < {ClF}_{2} < {IF}_{5}$
${IF}_{7} < {IF}_{5} < {ClF}_{3} < {XeF}_{2}$

(7 of 40)

The Vapors of 1 g of an element occupy 2.5625 L exerting a pressure of 0.5 atm at 1000 K. What is the molar mass (in $g {mol}^{- 1}$ ) of the element?

(Assume vapors follow ideal gas equation. Given R =