2023 May 14 EAMCET Engineering Afternoon Chemistry Practice Test

Test Description

This EAMCET Engineering Chemistry Practice Test was a previous year EAMCET exam conducted on 2023 May 14 Shift 2. 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 Telangana (AP) EAMCET 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 Telangana.

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) A 100 watt bulb emits light of wavelength ‘x’

\overset{o}{A}

. What is the value of x, if the number of photons emitted is

2.0 \times 10^{20} s^{- 1}

? (h =

6.63 \times 10^{- 34} Js

, 1 watt = 1

{Js}^{- 1}

)

3578
4978
3978
4578

(2 of 40) The ratio of the difference in energy between the first and second Bohr orbits to that between the second and third orbits is

$\frac{5}{27}$
$\frac{27}{5}$
$\frac{4}{9}$
$\frac{9}{4}$

(3 of 40) Assertion (A) : First ionisation enthalpy of oxygen is less than that of nitrogen
Reason (R) : Atoms with half-filled or completely filled orbitals are less stable

The correct option among the following is

A and R are true, R is the correct explanation of A
A and R are true, but R is not correct explanation of A
A is true but R is false
A is false but R is true

(4 of 40) In which of the following, molecules are arranged in the increasing order of their bond angles?

${NH}_{3} < {SO}_{2} < H_{2} O$
$H_{2} O < {NH}_{3} < {SO}_{2}$
${SO}_{2} < {NH}_{3} < H_{2} O$
${SO}_{2} < H_{2} O < {NH}_{3}$

(5 of 40) Arrange the molecules

B_{2}, {He}_{2}, N_{2} and C_{2}

in the increasing order of their bond order values

$C_{2} < {He}_{2} < B_{2} < N_{2}$
$N_{2} < B_{2} < C_{2} < {He}_{2}$
${He}_{2} < B_{2} < C_{2} < N_{2}$
${He}_{2} < C_{2} < N_{2} < B_{2}$

(6 of 40) Two containers A and B contain

{CO}_{2}

gas. Pressure, volume and absolute temperature of the gas in A are 4 times more compared to that in B. The mass of the gas in B is x g, then the mass of the gas in A will be

$\frac{x}{2}$ g
4x g
2x g
16x g

(7 of 40) The oxidation states of three carbon atoms in carbon suboxide (

C_{3} O_{2}

) respectively are

+2, 0, +2
+2, 0, +4
+4, +2, +2
-2, +2, 0

(8 of 40)

At T (K) 2 mole of an ideal gas is allowed to expand reversibly and isothermally from a pressure of 10 atmospheres to 1 atmosphere. The work done (in kJ) is

(R = 8.3