Some Basic Concepts of Chemistry PYQs - Last 10 Years
JEE Advanced / Chemistry / Physical Chemistry / 11 recent questions
ChemistryPhysical Chemistry2014-2023
Practice 11 JEE Advanced Chemistry questions from Some Basic Concepts of Chemistry. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.
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2014-2023
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Last 10 Years Some Basic Concepts of Chemistry Questions
Showing 11 of 11 filtered questions.
1Some Basic Concepts Of Chemistry
$\mathrm{H}_2 \mathrm{S}$ (5 moles) reacts completely with acidified aqueous potassium permanganate solution. In this reaction, the number of moles of water produced is $\mathbf{x}$, and the number of moles of electrons involved is $\mathbf...
INTEGER+4 / -02023
2Some Basic Concepts Of Chemistry
The stoichiometric reaction of $516 \mathrm{~g}$ of dimethyldichlorosilane with water results in a tetrameric cyclic product $\mathbf{X}$ in $75 \%$ yield. The weight (in g) of $\mathbf{X}$ obtained is _______.
[Use, molar mass $\left(\mat...
[Use, molar mass $\left(\mat...
INTEGER+4 / -02023
3Some Basic Concepts Of Chemistry
To check the principle of multiple proportions, a series of pure binary compounds $\left(\mathrm{P}_{\mathrm{m}} \mathrm{Q}_{\mathrm{n}}\right)$ were analyzed and their composition is tabulated below. The correct option(s) is(are)
.tg {b...
.tg {b...
MCQM+4 / -22022
4Some Basic Concepts Of Chemistry
The treatment of an aqueous solution of $3.74 \mathrm{~g}$ of $\mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}$ with excess KI results in a brown solution along with the formation of a precipitate. Passing $\mathrm{H}_{2} \mathrm{~S}$ through t...
INTEGER+3 / -02022
5Some Basic Concepts Of Chemistry
In the chemical reaction between stoichiometric quantities of KMnO4 and KI in weakly basic solution, what is the number of moles of I2 released for 4 moles of KMnO4 consumed?
INTEGER+3 / -12020
6Some Basic Concepts Of Chemistry
5.00 mL of 0.10 M oxalic acid solution taken in a conical flask is titrated against NaOH from a burette using phenolphthalein indicator. The volume of NaOH required for the appearance of permanent faint pink color is tabulated below for fiv...
INTEGER+4 / -02020
7Some Basic Concepts Of Chemistry
The amount of water produced (in g) in the oxidation of 1 mole of rhombic sulphur by conc. HNO3 to a compound with the highest oxidation state of sulphur is ..............(Given data : Molar mass of water = 18 g mol\(-\)1)
INTEGER+3 / -02019
8Some Basic Concepts Of Chemistry
The mole fraction of urea in an aqueous urea solution containing 900 g of water is 0.05. If the density of the solution is 1.2 g cm\(-\)3, then molarity of urea solution is ................(Given data : Molar masses of urea and water are 60...
INTEGER+3 / -02019
9Some Basic Concepts Of Chemistry
To measure the quantity of \(MnC{l_2}\) dissolved in an aqueous solution, it was completely converted to \(KMn{O_4}\) using the reaction,
\(MnC{l_2} + {K_2}{S_2}{O_8} + {H_2}O \to KMn{O_4} + {H_2}S{O_4} + HCl\) (equation not balanced).
...
\(MnC{l_2} + {K_2}{S_2}{O_8} + {H_2}O \to KMn{O_4} + {H_2}S{O_4} + HCl\) (equation not balanced).
...
INTEGER+3 / -02018
10Some Basic Concepts Of Chemistry
A compound H2X with molar weight of 80g is dissolved in a solvent having density of 0.4 gml–1 . Assuming no change in volume upon dissolution, the molality of a 3.2 molar solution is
INTEGER+3 / -02014
11Some Basic Concepts Of Chemistry
If the value of Avogadro number is 6.023 \(\times\) 1023 mol-1 and the value of Boltzmann constant is 1.380 \(\times\) 10-23 J K-1, then the number of significant digits in the calculated value of the universal gas constant is
INTEGER+3 / -02014