BITSAT SERIES Chemistry
Reaction Mechanism
12 previous year questions.
Volume: 12 Ques
Yield: Medium
High-Yield Trend
2
2024 1
2018 2
2011 1
2010 6
2009 Chapter Questions 12 MCQs
01
PYQ 2009
medium
chemistry ID: bitsat-2
Which one of the following statements is false?
1
The correct order of osmotic pressure for 0.01 M aqueous solution of each compound is BaCl₂ > KCl > CH₃COOH > sucrose.
2
The osmotic pressure (π) of a solution is given by π = MRT, where M is the molarity of the solution.
3
Raoult’s law states that the vapour pressure of a component over a solution is proportional to its mole fraction.
4
Two sucrose solutions of same molality prepared in different solvents will have the same freezing point depression.
02
PYQ 2009
medium
chemistry ID: bitsat-2
The degree of dissociation of Ca(NO₃)₂ in a dilute aqueous solution containing 7.0 g of salt per 100 g of water at 100C is 70%. If vapour pressure of water at 100C is 760 mm Hg, the vapour pressure of the solution is:
1
735 mm Hg
2
730 mm Hg
3
760 mm Hg
4
746 mm Hg
03
PYQ 2009
medium
chemistry ID: bitsat-2
When the sample of copper with zinc impurity is to be purified by electrolysis, the appropriate electrodes are: c c
Cathode & Anode
1
Pure zinc Pure copper
2
Impure sample Pure copper
3
Impure zinc Impure sample
4
Pure copper Impure sample
04
PYQ 2009
medium
chemistry ID: bitsat-2
The conductivity of a saturated solution of BaSO₄ is 3.06 × 10⁻⁶ Ω⁻¹cm⁻¹ and its equivalent conductance is 1.53 Ω⁻¹cm²eq⁻¹. The Kₛp for BaSO₄ is:
1
4 × 10⁻¹²
2
2.5 × 10⁻⁹
3
2.5 × 10⁻¹³
4
4 × 10⁻⁶
05
PYQ 2009
medium
chemistry ID: bitsat-2
A cell that utilises the reaction
Zn(s) + 2H^+(aq) Zn²⁺(aq) + H₂(g)
addition of H₂SO₄ to cathode compartment, will:
1
increase the E and shift equilibrium to the right.
2
lower the E and shift equilibrium to the right.
3
lower the E and shift equilibrium to the left.
4
increase the E and shift equilibrium to the left.
06
PYQ 2009
medium
chemistry ID: bitsat-2
The chemical reaction 2O₃ → 3O₂ proceeds as follows:
O₃ fast O₂ + O
O + O₃ slow 2O₂
The rate law expression should be:
1
r = k[O₃]
2
r = k[O₃][O₂]⁻¹
3
r = k[O₃]²[O₂]²
4
r = k[O₃][O₂]²
07
PYQ 2010
easy
chemistry ID: bitsat-2
Hyperconjugation involves
1
conjugation
2
delocalisation
3
No bond resonance
4
All
08
PYQ 2011
medium
chemistry ID: bitsat-2
Which of the following compounds will react with two moles of ?
1
2
3
4
09
PYQ 2011
easy
chemistry ID: bitsat-2
The product/s of the reaction, is/are:
1
2
3
4
None of these
10
PYQ 2018
medium
chemistry ID: bitsat-2
Which of the following is strongest nucleophile
1
2
3
4
11
PYQ 2024
medium
chemistry ID: bitsat-2
The ratio for the reaction is:
1
2
3
1
4
12
PYQ 2024
medium
chemistry ID: bitsat-2
Le-Chatelier's principle is not applicable to
1
2
3
4
About Reaction Mechanism - BITSAT
Reaction Mechanism is a vital chapter for BITSAT 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 Reaction Mechanism 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 Reaction Mechanism carry the most weight. Then, tackle the questions iteratively to solidify your understanding.