by DeepWebLabs
NEET-UG SERIES
Chemistry

Enthalpy Change

7 previous year questions.

Volume: 7 Ques
Yield: Medium

High-Yield Trend

2
2024
1
2018
1
2016
1
2013
1
2012
1
2006

Chapter Questions
7 MCQs

01
PYQ 2006
easy
chemistry ID: neet-ug-
The enthalpy and entropy change for the reaction : Br2(l) + Cl2(g) → 2BrCl(g) are 30 kJ mol-1 and 105 JK-1 mol-1 respectively. The temperature at which the reaction will be in equilibrium is :
1

285.7 K

2

373 K

3

250 K

4

400 K

02
PYQ 2012
medium
chemistry ID: neet-ug-
Standard enthalpy of vapourisation for water at is . The internal energy of vaporisation of water at (in ) is : (Assume water vapour to behave like an ideal gas)
1
43.76
2
40.66
3
37.56
4
-43.76
03
PYQ 2013
medium
chemistry ID: neet-ug-
On the basis of thermochemical equations (a), (b) and (c), find out which of the algebric relationships given in options (i) to (iv) is correct. (1) (2) (3)
1
z = x + y
2
x = y - z
3
x = y + z
4
y = 2z - x
04
PYQ 2016
easy
chemistry ID: neet-ug-
One mole of an ideal monatomic gas undergoes a process described by the equation constant. The heat capacity of the gas during this process is -
1
2
3
4
05
PYQ 2018
medium
chemistry ID: neet-ug-
The bond dissociation energies of and are in the ratio of for the formation of is - . The bond dissociation energy of will be
1
2
3
4
06
PYQ 2024
easy
chemistry ID: neet-ug-
Arrange the following elements in increasing order of first ionization enthalpy:
Li, Be, B, C, N
Choose the correct answer from the options given below:
1
Li < Be < B < C < N
2
Li < B < Be < C < N
3
Li < Be < C < B < N
4
Li < Be < N < B < C
07
PYQ 2024
medium
chemistry ID: neet-ug-
Identify the incorrect statement from the following:
1
The acidic strength of HX (X = F, Cl, Br and I) follows the order: HF > HCl > HBr > HI.
2
Fluorine exhibits ā€“1 oxidation state whereas other halogens exhibit +1, +3, +5 and +7 oxidation states also.
3
The enthalpy of dissociation of F2 is smaller than that of Cl2.
4
Fluorine is stronger oxidising agent than chlorine.

About Enthalpy Change - NEET-UG

Enthalpy Change is a vital chapter for NEET-UG aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.

By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.

Frequently Asked Questions

Why focus on Enthalpy Change PYQs?

Analyzing PYQs for this specific chapter reveals the most frequently tested concepts and the typical complexity of questions, allowing you to tailor your study plan efficiently.

How to best use this analysis?

Review the topic breakdown to see which sub-topics within Enthalpy Change carry the most weight. Then, tackle the questions iteratively to solidify your understanding.