Chemistry · 2023
JEE Main · 1 February 2023, Shift 2 · Q50
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): An aqueous solution of KOH…
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as
Reason (R).
Assertion (A) : An aqueous solution of KOH when used for volumetric analysis, its concentration should be checked before the use.
Reason (R) : On aging, KOH solution absorbs atmospheric $\displaystyle \mathrm{CO}_2$.
In the light of the above statements, choose the correct answer from the options given below :
Official answer
From NTA’s final answer key for this paper.
(1)
Both (A) and (R) are correct and (R) is the correct explanation of (A)
More from Redox Reactions
- Which of the following reactions are disproportionation reactions? Cu^+ → Cu^2++Cu 3 MnO_4^2-+4 H^+ → 2 MnO_4^-+MnO_2+2 H_2 O 2 KMnO_4 → K_2…2024
- From the given list, the number of compounds with +4 oxidation state of Sulphur is ____. SO_3, H_2 SO_3, SOCl_2, SF_4, BaSO_4, H_2 S_2 O_72024
- Total number of species from the following which can undergo disproportionation reaction is ____. H_2 O_2, ClO_3^-, P_4, Cl_2, Ag, Cu^+1, F_2, NO_2,…2024
- The species which does not undergo disproportionation reaction is:2025
- 2 MnO_4^-+bI^-+cH_2 O → x I_2+y MnO_2+z Ō H If the above equation is balanced with integer coefficients, the value of z is ____.2024
- In ammonium - phosphomolybdate, the oxidation state of Mo is + ____2023
- 2 IO_3^-+x I^-+12 H^+ → 6 I_2+6 H_2 O What is the value of x?2023
- 500 mL of 0.2 M MnO_4^- solution in basic medium when mixed with 500 mL of 1.5 M KI solution, oxidises iodide ions to liberate molecular iodine. This…2026
JEE Main 2023 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.