Some Basic Concepts of Chemistry

0.1 mol of the following given antiviral compound \((\mathrm{P})\) will weigh ________ \(\times 10^{-1} \mathrm{~g}\) (Given : molar mass in \(\mathrm{g} \mathrm{mol}^{-1} \mathrm{H}: 1, \mathrm{C}: 12, \mathrm{~N}:…

______grams of $3-$Hydroxy propanal $(\mathrm{MW}=74)$ must be dehydrated to produce $7.8g$ of acrolein$(\mathrm{MW}=56)\left(C_{3}H_{4}O\right)$ if the percentage yield is$64.$ (Round off to the Nearest Integer).…

$5$ moles of $AB_{2}$ weigh $125\times\,10^{-3}kg$ and $10$ moles of $A_{2}B_{2}$ weigh $300\times\,10^{-3}kg$ . The molar mass of A $(M_{A})$ in $kgmol^{-1}$ are:

Consider the above sequence of reactions. 151 g of 2-bromopentane is made to react. Yield of major product P is $80 \%$ whereas Q is $100 \%$. Mass of product Q obtained is ____ g. (Given molar mass in $\mathrm{g}…

$56.0L$ of nitrogen gas is mixed with excess of hydrogen gas and it is found that$20L$ of ammonia gas is produced, The volume of unused nitrogen gas is found to be_____$L$.

The hydrocarbon $(X)$ with molar mass $80 \mathrm{~g} \mathrm{~mol}^{-1}$ and $90 \%$ carbon has $\ldots\ldots$ degree of unsaturation?

Consider the above reaction where $6.1g$ ofbenzoic acid is used to get $7.8g$ ofm-bromobenzoic acid. The percentage yield of the product is ___ . (Round off to the Nearest integer) [Given : Atomic masses :…

$2\mathrm{SO}_{2}(g)+O_{2}(g)\rightarrow\,2\mathrm{SO}_{3}(g)$ The above reaction is carried out in a vessel starting with partial pressure $P_{\mathrm{SO}_{2}}=250m\mathrm{bar}$,$P_{O_{2}}=750m\mathrm{bar}$and…

In the above reaction, $5 g$ of toluene is converted into benzaldehyde with $92%$ yield. The amount of benzaldehyde produced is____$\operatorname{\times}\,10^{-2} g$

Consider the above reaction. The percentage yield of amide product is (Round off to the Nearest Integer). (Given : Atomic mass : $C:12.0u,H:1.0u$$N:14.0u,O:16.0u,\mathrm{Cl}:35.5u)$

\(9.3 \mathrm{~g}\) of pure aniline is treated with bromine water at room temperature to give a white precipitate of the product ' \(\mathrm{P}\) '. The mass of product ' \(\mathrm{P}\) ' obtaind is \(26.4…

$1.86g$ of aniline completely reacts to form acetanilide. $10%$ of the product is lost during purification. Amount of acetanilide obtained after purification (in $g$)is ___________$\times\,10^{-2}.$