{H}_{2} {C}= {C}= {O} \stackrel{(1) {B}{────\xrightarrow_{2}(\text{ anddition)1 eq. }} {\A} \xrightarrow↖ {{CH}_{3} {MgBr}}_{2 eq.} suppose both reactions occur by 100 %efficiency then the molar mass of B :

JEE Advanced 2020 Concept Recapitulation Test 4 Paper 2

Question : 36 of 54

Marks: +1, -0

H2C=C=O

(1)B2(‌ anddition)1 eq. ‌

───────────▶

CH3MgBr

───────▶

2eq.

suppose both reactions occur by 100%efficiency then the molar mass of B :

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