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JEE Main
IMPORTANT
Earn 100

In the following reaction

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The % yield for reaction I is 60% and that of reaction II is 50%. The overall yield of the complete reaction is%

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Important Questions on Some Basic Concepts of Chemistry

MEDIUM
JEE Main
IMPORTANT
The normality of H2SO4 in the solution obtained on mixing 100 mL of 0.1M H2SO4 with 50 mL of 0.1M NaOH is____×10-1 N.
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JEE Main
IMPORTANT

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In the above reaction, 5 g of toluene is converted into benzaldehyde with 92% yield. The amount of benzaldehyde produced is____ ×10-2 g

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JEE Main
IMPORTANT

In the given reaction,

X+Y+3ZXYZ3

if one mole of each of X and Y with 0.05 mol of Z gives compound XYZ3. (Given : Atomic masses of X,Y and Z are 10,20 and 30amu, respectively). The yield of XYZ3 is____g.

HARD
JEE Main
IMPORTANT
On complete combustion of 0.492 g of an organic compound containing C,H and O,0.7938 g of CO2 and 0.4428 g of H2O was produced. The % composition of oxygen in the compound is____. (Nearest Integer)
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JEE Main
IMPORTANT
2 L of 0.2MH2SO4 is reacted with 2 L of 0.1MNaOH solution, the molarity of the resulting product Na2SO4 in the solution is____millimolar.
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JEE Main
IMPORTANT

N2g+3H2g2NH3g20 g       5 g

Consider the above reaction, the limiting reagent of the reaction and number of moles of NH3 formed respectively are

HARD
JEE Main
IMPORTANT
In bromination of Propyne, with Bromine 1,1,2,2-tetrabromopropane is obtained in 27% yield. The amount of 1,1,2,2 tetrabromopropane obtained from 1 g of Bromine in this reaction is_____×10-1 g . (Molar Mass : Bromine =80 g/mol)
MEDIUM
JEE Main
IMPORTANT

Consider the reaction

4HNO3l+3KClsCl2g+NOClg+2H2Og+3KNO3s

The amount of HNO3 required to produce110.0 g of KNO3 is

(Given : Atomic masses of H,O,N and K are 1,16,14 and 39, respectively.)