Q JEE Mains 2026

Match the following

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Q JEE MAIN 2020

The number of chiral carbons present in the molecule given below is ______.

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Q JEE-MAIN 2020

Among the following compounds geometrical isomerism is exhibited by

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Q JEE MAIN 2019

In a communication system operating at wavelength 800 nm , only one percent of source frequency is available as signal...

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Q JEE MAIN_2021_

The dihedral angle in staggered form of Newman projection of 1,1,1-Trichloro ethane is $\_\_\_\_$ degree. (Round off to the nearest...

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Q JEE-MAIN 2021

The stereoisomers that are formed by electrophilic addition of bromine to trans-but-2-ene is/are :

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Q JEE MAIN 2021

The stereoisomers that are formed by electrophilic addition of bromine to trans-but-2-ene is/are :

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Q JEE MAIN 2021

Staggered and eclipsed conformers of ethane are :

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Q JEE MAIN 2021

Which one of the following pairs of isomers is an example of metamerism ?

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Q JEE MAIN 2021

A carrier wave with amplitude of 250 V is amplitude modulated by a sinusoidal base band signal of amplitude 150...

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Q JEE-MAIN 2021

The total number of C–C sigma bond/s in mesityl oxide $\left(\mathrm{C}_6 \mathrm{H}_{10} \mathrm{O}\right)$ is_____. (Round off to the Nearest Integer).

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Q JEE MAIN 2021

Compound with molecular formula $\mathrm{C}_3 \mathrm{H}_6 \mathrm{O}$ can show :

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Q JEE MAIN 2022

Total number of possible stereoisomers of dimethyl cyclopentane is ___________

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Q JEE MAIN 2023

Match List I with List II.

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Q JEE MAIN_2023

The modulation index for an A.M. wave having maximum and minimum peak to peak voltages of 14 mV and 6...

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Q JEE MAIN 2025

Match List - I with List - II. Choose the correct answer from the options given below :

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Q JEE MAIN 2025

In the sulphur estimation, 0.20 g of a pure organic compound gave 0.40 g of barium sulphate. The percentage of...

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Q JEE MAIN 2025

Given below are two statements : Statement (I): In partition chromatography, stationary phase is thin film of liquid present in...

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Q JEE MAIN 2025

In Carius method of estimation of halogen, 0.25 g of an organic compound gave 0.15 g of silver bromide $(\mathrm{AgBr})$....

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