NTA JEE Main 26th August 2021 Shift 1

Given below are two statements:
Statement I : According to Bohr's model of an atom, qualitatively the magnitude of velocity of electron increases with decrease in positive charges on the nucleus as there is no strong hold on the electron by the nucleus.
Statement II : According to Bohr's model of an atom, qualitatively the magnitude of velocity of electron increases with decrease in principle quantum number.
In the light of the above statements, choose the most appropriate answer from the options given below:

Given below are two statements:
Statement I : In the titration between strong acid and weak base methyl orange is suitable as an indicator.
Statement II : For titration of acetic acid with NaOH phenolphthalein is not a suitable indicator.
In the light of the above statements, choose the most appropriate answer from the options given below:

Which one of the following methods is most suitable for preparing deionized water?

What are the products formed in sequence when excess of CO$$_2$$ is passed in slaked lime?

The major product formed in the following reaction is:

Excess of isobutane on reaction with Br$$_2$$ in presence of light at 125°C gives which one of the following, as the major product?

Among the following compounds I - IV, which one forms a yellow precipitate on reacting sequentially with
(i) NaOH (ii) dil. HNO$$_3$$ (iii) AgNO$$_3$$

The conversion of hydroxyapatite occurs due to presence of F$$^-$$ ions in water. The correct formula of hydroxyapatite is:

Given below are two statements:
Statement I : Frenkel defects are vacancy as well as interstitial defects.
Statement II : Frenkel defect leads to colour in ionic solids due to presence of F-centres.
Choose the most appropriate answer for the statements from the options given below:

Given below are two statements:
Statement I : The limiting molar conductivity of KCl (strong electrolyte) is higher compared to that of CH$$_3$$COOH (weak electrolyte).
Statement II : Molar conductivity decreases with decrease in concentration of electrolyte.
In the light of the above statements, choose the most appropriate answer from the options given below: