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C6H5 – CH = CHCHO gives C6H5CH = CHCH2OH. In the above sequence X can be (a) H2 / Ni (b) NaBH4 (c) K2Cr2O6 / H+ (d) Both (a) and (b) C6H5 - CH = CHCHO gives C6H5CH = CHCH2OH. In the above sequence X can be (a) H2 / Ni (b) NaBH4 (c) K2Cr2O6 [...]

When ethanal reacts with CH3MgBr and C2H5OH / dry HCl the product formed are (a) Ethyl alcohol and 2-propanol (b) Ethane and hemi-acetal (c) 2-propanol and acetal When ethanal reacts with CH3MgBr and C2H5OH / dry HCl the product formed are (a) Ethyl alcohol and 2-propanol (b) Ethane and hemi-acetal (c) 2-propanol and acetal February [...]

Assertion : All molecules in a gas have same speed. Reason : Gas contains molecules of different size and shape. Assertion : All molecules in a gas have same speed. Reason : Gas contains molecules of different size and shape. February 10, 2021 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

In form of G (universal gravitational constant ) , h ( Planck constant ) and c ( speed of light ) , the time period will be proportional to h ( Planck constant ) and c ( speed of light ) In form of G (universal gravitational constant ) the time period will be proportional [...]

Methylphenyl ether can be obtained by reacting (a) Phenolate ions and methyl iodide (b) Methoxide ions and bromobenzene (c) Methanol and phenol (d) Bromo benzene and methyl bromide Methylphenyl ether can be obtained by reacting (a) Phenolate ions and methyl iodide (b) Methoxide ions and bromobenzene (c) Methanol and phenol (d) Bromo benzene and methyl [...]

The fermentation of starch to give alcohol occurs mainly with the help of (a) O2 (b) Air (c) CO2 (d) Enzymes The fermentation of starch to give alcohol occurs mainly with the help of (a) O2 (b) Air (c) CO2 (d) Enzymes February 10, 2021 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]

Acetyl bromide reacts with excess of CH3MgI followed by treatment with a saturated solution of NH4Cl gives (a) 2-methyl-2-propanol (b) Acetamide (c) Acetone (d) Acetyl iodide Acetyl bromide reacts with excess of CH3MgI followed by treatment with a saturated solution of NH4Cl gives (a) 2-methyl-2-propanol (b) Acetamide (c) Acetone (d) Acetyl iodide February 10, 2021 [...]

The density of a material in SI units is 128 kg m^-3 . In certain units in which the unit of length is 25 cm and the unit of mass is 50g , the numerical vaule of density of the material is The density of a material in SI units is 128 kg m^-3 . [...]

In the reaction Ar-OH + RX gives A, A is (a) An aldehyde (b) An aryl chloride (c) An ether (d) A ketone A is (a) An aldehyde (b) An aryl chloride (c) An ether (d) A ketone In the reaction Ar-OH + RX gives A February 10, 2021 Category: Uncategorised (JEE Advanced Physics by [...]

Assertion : Wet air is heavier than dry air. Reason : The density of dry air is more than density of water. Assertion : Wet air is heavier than dry air. Reason : The density of dry air is more than density of water. February 10, 2021 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]