1
JEE Main 2022 (Online) 26th July Evening Shift
Numerical
+4
-1
Change Language

The number of non-ionisable protons present in the product B obtained from the following reactions is ___________.

$$ \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}+\mathrm{PCl}_{3} \rightarrow \mathrm{C}_{2} {\mathrm{H}_{5} \mathrm{Cl}+\mathrm{A}} $$

$$\mathrm{A}\,{+}\, \mathrm{PCl}_{3} \rightarrow \mathrm{B}$$

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2
JEE Main 2022 (Online) 26th June Morning Shift
Numerical
+4
-1
Change Language

Compound 'P' on nitration with dil. HNO3 yields two isomers (A) and (B). These isomers can be separated by steam distillation. Isomers (A) and (B) show the intramolecular and intermolecular hydrogen bonding respectively. Compound (P) on reaction with conc. HNO3 yields a yellow compound 'C', a strong acid. The number of oxygen atoms is present in compound 'C' _____________.

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3
JEE Main 2022 (Online) 25th June Evening Shift
Numerical
+4
-1
Change Language

Consider the following reactions:

PCl3 + H2O $$\to$$ A + HCl

A + H2O $$\to$$ B + HCl

The number of ionisable protons present in the product B is _______________.

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4
JEE Main 2021 (Online) 31st August Morning Shift
Numerical
+4
-1
Consider the sulphides HgS, PbS, CuS, Sb2S3, As2S3 and CdS. Number of these sulphides soluble in 50% HNO3 is ___________.
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