29 JEE Main 2022 Some Basic Concepts of Chemistry previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2022 previous-year questions from the Some Basic Concepts of Chemistry chapter of Chemistry. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Some Basic Concepts of Chemistry chapter hub.
2   L of 0 . 2 MH 2 SO 4 is reacted with 2   L of 0 . 1 MNaOH solution, the molarity of the resulting product…
The moles of methane required to produce 81   g of water after complete combustion is____ × 10 - 2   mol…
Consider the reaction 4 HNO 3 l + 3 KCl s → Cl 2 g + NOCl g + 2 H 2 O g + 3 KNO 3 s The amount of HNO 3 required…
250   g solution of D -glucose in water contains 10 . 8 % of carbon by weight. The molality of the solution is nea…
SO 2 Cl 2 on reaction with excess of water results into acidic mixture SO 2 Cl 2 + 2 H 2 O → H 2 SO 4 + 2 HCl 16…
1   L aqueous solution of H 2 SO 4 contains 0 . 02   m   mol   H 2 SO 4 . 50 % of this solution is…
A 1 . 84 mg sample of polyhydric alcoholic compound ' X ' of molar mass 92 . 0   g / mol gave 1 . 344   mL of…
Using the rules for significant figures, the correct answer for the expression 0 . 02858 × 0 . 112 0 . 5702 will b…
In the above reaction, 5 g of toluene is converted into benzaldehyde with 92 % yield. The amount of benzaldehyd…
120   g of an organic compound which contains only carbon and hydrogen on complete combustion gives 330   g o…
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