Atomic Masses And Composition Of Nucleus is an important topic in the Chemistry section in VITEEE exam. Practising this topic will increase your score overall and make your conceptual grip on VITEEE exam stronger.
This article gives you a full set of VITEEE PYQs for Atomic Masses And Composition Of Nucleus with explanations for effective preparation. Practice of VITEEE Chemistry PYQs including Atomic Masses And Composition Of Nucleus questions regularly will improve accuracy, speed, and confidence in the VITEEE 2026 exam.
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VITEEE PYQs for Atomic Masses And Composition Of Nucleus with Solutions
1.
Boric acid is polymeric due to:- its acidic nature
- the presence of hydrogen bonds
- its monobasic nature
- its geometry
2.
Arrange the following in increasing order of ionic radii: \( C^{4-}, N^{3-}, F^{-}, O^{2-} \).- \( C^{4-}<N^{3-}<O^{2-}<F^{-} \)
- \( N^{3-}<C^{4-}<O^{2-}<F^{-} \)
- \( F^{-}<O^{2-}<N^{3-}<C^{4-} \)
- \( O^{2-}<F^{-}<N^{3-}<C^{4-} \)
3.
Which of the following has correct increasing basic strength?- \( {MgO} < {BeO} < {CaO} < {BaO} \)
- \( {BeO} < {MgO} < {CaO} < {BaO} \)
- \( {BaO} < {CaO} < {MgO} < {BeO} \)
- \( {CaO} < {BaO} < {BeO} < {MgO} \)
4.
Among the following, the species having the smallest bond order is:- \( {NO}^- \)
- \( {NO}^+ \)
- \( {O}_2 \)
- \( {NO} \)
5.
The product(s) formed when diborane (\( B_2H_6 \)) is hydrolyzed is/are:- \( B_2O_3 \) and \( H_3BO_3 \)
- \( B_2O_3 \) only
- \( H_3BO_3 \) and \( H_2 \)
- \( H_3BO_3 \) only
6.
In Clemmensen reduction, carbonyl compounds are treated with:- Zinc amalgam + HCl
- Sodium amalgam + HCl
- Zinc amalgam + Nitric acid
- Sodium amalgam + HNO\(_3\)
7.
The order of increasing sizes of atomic radii among the elements O, S, Se, and As is:- As < S < O < Se
- Se < S < As < O
- O < S < As < Se
- O < S < Se < As
8.
What is the number of moles in 18 g of water (\( \text{H}_2\text{O} \))?- 1 mol
- 0.5 mol
- 2 mol
- 0.25 mol
9.
What is the molar mass of \( \text{NaCl} \)?- 58 g/mol
- 60 g/mol
- 62 g/mol
- 56 g/mol
10.
Which of the following is not a permissible arrangement of electrons in an atom?- \( n = 5, l = 3, m = 0, s = +\frac{1}{2} \)
- \( n = 3, l = 2, m = -3, s = -\frac{1}{2} \)
- \( n = 3, l = 2, m = -2, s = -\frac{1}{2} \)
- \( n = 4, l = 0, m = 0, s = -\frac{1}{2} \)
11.
An element X has a body-centred cubic (bcc) structure with a cell edge of 200 pm. The density of the element is 5 g cm\(^{-3}\). The number of atoms present in 300g of the element X is:
Given: Avogadro Constant, \( N_A = 6.0 \times 10^{23} \) mol\(^{-1} \).- \( 5N_A \)
- \( 6N_A \)
- \( 15N_A \)
- \( 25N_A \)
12.
The rate law for a reaction between the substances A and B is given by: \[ {Rate} = k[A]^m[B]^n \] On doubling the concentration of A and halving the concentration of B, the ratio of the new rate to the earlier rate of the reaction will be:- \( (m + n) \)
- \( (n - m) \)
- \( 2^{(n - m)} \)
- \( \frac{1}{2^{(m + n)}} \)
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