Chemistry · 2021
JEE Main · 4 August 2021, Shift 2 · Q60
In the reactions above, yield of the first step is 90% and that of the second step is 80 %. The overall yield of the reaction is \ \ \ \ %.
In the reactions above, yield of the first step is $\displaystyle 90$% and that of the second step is $\displaystyle 80 \%$. The overall yield of the reaction is \_\_\_\_ %.Official answer
72
More from Some Basic Concepts of Chemistry
- If a rocket runs on a fuel (C_15 H_30) and liquid oxygen, the weight of oxygen required and CO_2 released for every litre of fuel respectively are:…2022
- 2 SO_2( g)+O_2( g) → 2 SO_3( g) The above reaction is carried out in a vessel starting with partial pressures P_SO_2=250 m bar, P_O_2=750 m bar and…2021
- 2.8 × 10^-3 mol of CO_2 is left after removing 10^21 molecules from its ' x ' mg sample. The mass of CO_2 taken initially is Given: N_A=6.02 × 10^23…2025
- The number of molecules and moles in 2.8375 litres of O_2 at STP are respectively2023
- For the given reaction; CaCO_3+2 HCl → CaCl_2+H_2 O+CO_2 If 90 g CaCO_3 is added to 300 mL of HCl which contains 38.55 % HCl by mass and has density…2026
- 10 mL of 2 M NaOH solution is added to 20 mL of 1 M HCl solution kept in a beaker. Now, 10 mL of this mixture is poured into a volumetric flask of…2025
- In the Claisen-Schmidt reaction to prepare 351 g of dibenzalacetone using 87 g of acetone, the amount of benzaldehyde required is ____ g. (Nearest…2024
- A chloro compound " A ". (i) forms aldehydes on ozonolysis followed by the hydrolysis. (ii) when vaporized completely 1.53 g of A, gives 448 mL of…2021
JEE Main 2021 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.