NTA JEE Main 29th July 2022 Shift 2

Consider the reaction
$$4HNO_3(l) + 3KCl(s) \to Cl_2(g) + NOCl(g) + 2H_2O(g) + 3KNO_3(s)$$
The amount of $$HNO_3$$ required to produce 110.0 g of $$KNO_3$$ is (Given: Atomic masses of H, O, N and K are 1, 16, 14 and 39, respectively.)

$$C(s) + O_2(g) \to CO_2(g) + 400$$ kJ
$$C(s) + \frac{1}{2}O_2(g) \to CO(g) + 100$$ kJ
When coal of purity 60% is allowed to burn in presence of insufficient oxygen, 60% of carbon is converted into 'CO' and the remaining is converted into '$$CO_2$$'. The heat generated when 0.6 kg of coal is burnt is

Given below are the quantum numbers for 4 electrons.
A. $$n=3, l=2, m_l=1, m_s=+\frac{1}{2}$$
B. $$n=4, l=1, m_l=0, m_s=+\frac{1}{2}$$
C. $$n=4, l=2, m_l=-2, m_s=-\frac{1}{2}$$
D. $$n=3, l=1, m_l=-1, m_s=+\frac{1}{2}$$
The correct order of increasing energy is

200 mL of 0.01 M HCl is mixed with 400 mL of 0.01 M $$H_2SO_4$$. The pH of the mixture is

A compound 'X' is a weak acid and it exhibits colour change at pH close to the equivalence point during neutralization of NaOH with $$CH_3COOH$$. Compound 'X' exists in ionized form in basic medium. The compound 'X' is

Given below are two statements.
Statement I: Stannane is an example of a molecular hydride.
Statement II: Stannane is a planar molecule.
In the light of the above statement, choose the most appropriate answer from the options given below

Portland cement contains 'X' to enhance the setting time. What is 'X'?

When borax is heated with CoO on a platinum loop, blue coloured bead formed is largely due to

Correct structure of $$\gamma$$-methylcyclohexane carbaldehyde is

Given below are two statements.
Statement I: The compound is optically active.

Statement II: The second compound is mirror image of the above compound A.

In the light of the above statement, choose the most appropriate answer from the options given below.