Archives

4g of hydrogen reacts with 20g of oxygen to produce water. The total mass of water formed will be:

(A) 20g (B) 22.5g (C) 42.0g (D) 42.2g The Correct Answer is (B) 22.5g Solution: Given: 4g of hydrogen = 2 moles 20g of oxygen = 0.625... View Article

The volume of Oxygen(O2) liberated at STP when 100 ml of 15 Vol H2O2 decomposes is:

(A) 150 (B) 300 (C) 1500 (D) 3000 The Correct Answer is (C) 1500 Solution: If 1ml of H2O2 of 15 Vol liberates 15ml of Oxygen(O2) at... View Article

A solution contains 40 g of common salt in 320 g of water. What is the concentration in terms of mass by the mass percentage of the solution?

(A) 10.05% (B) 11.05% (C) 11.11% (D) 11.15% The Correct Answer is (C) 11.11% Solution: The concentration in terms of mass by the mass... View Article

What is the density of carbon dioxide gas at the temperature 400k and 0.0821 atmospheric pressure?

(A) 2.5 (B) 4.4 (C) 0.11 (D) 0.014 The Correct Answer is (C) 0.11 Solution: The density of carbon dioxide gas at the temperature 400k and... View Article

The value of Kp for the following reaction 2SO2(g) + O2(g) ⇌2SO3(g) is 5. What will be the partial pressure of O2 at equilibrium when equal moles of SO3 and SO2 are present at equilibrium?

(A) 0.1 (B) 0.2 (C) 0.3 (D) 0.5 The Correct Answer is (B) 0.2 Solution: The given reaction is: The value of Kp for the following... View Article

Histone proteins are rich in which of the following basic amino acids?

(A) Arginine and Lysine (B) Alanine and Glycine (C) Histidine and Serine (D) Tyrosine and Cysteine The Correct Answer is (A) Arginine and... View Article

Alkane is obtained from which of the following Grignard reagent?

(A) NH3 (B) HOH (C) C2H5OH (D) All Of These The Correct Answer is (D) All Of These Solution: Yes. Alkane(RH) is obtained from all of the... View Article

What is the total number of black coloured sulphides among Ag2S, Bi2S3, CoS, CuS, HgS, MnS, NiS, PbS, and SnS2.

(A) Two (B) Four (C) Six (D) Eight The Correct Answer is (C) Six Solution: The total number of black coloured sulphides is 6. These include... View Article

Iodine(I2) reacts with Concentrated Nitric acid(HNO3)to give:

(A) HI (B) HOIO2 (C) HOIO3 (D) All Of These The Correct Answer is (B) HOIO2 Solution: When Iodine(I2) is reacted with concentrated Nitric... View Article

What is the order of rate of reaction of the following compound with phenyl magnesium bromide?

(A) I > II > III (B) II > III > I (C) III > II > I (D) III > I > II The Correct Answer is (A) I > II >... View Article

The compounds C2H5OC2H5 and CH3OCH2CH2CH3 are:

(A) Metamers. (B) Chain isomers. (C) Geometrical isomers. (D) Conformational isomerism. The Correct Answer is (A) Metamers. Solution: The... View Article

The thermal decomposition of Acetaldehyde (CH3CHO) occurs as : CH3CHO → CH4 + CO. The kinetic data of the thermal decomposition is given below. The rate expression thus can be given as:

The kinetic data of the thermal decomposition. (CH3CHO)mol.lit-1 Rate(mol.lit-1.sec-1) 1.75 * 10-3... View Article

The value of α for which the equation (α+5)x² – (2α+1)x + (α-1) = 0 has roots equal in magnitude but opposite in sign, is

(a) 7/4 (b) 1 (c) -½ (d) -5 Solution: Given (α+5)x2 - (2α+1)x + (α-1) = 0 has roots equal in magnitude but... View Article

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Archives

4g of hydrogen reacts with 20g of oxygen to produce water. The total mass of water formed will be:

The volume of Oxygen(O2) liberated at STP when 100 ml of 15 Vol H2O2 decomposes is:

A solution contains 40 g of common salt in 320 g of water. What is the concentration in terms of mass by the mass percentage of the solution?

What is the density of carbon dioxide gas at the temperature 400k and 0.0821 atmospheric pressure?

The value of Kp for the following reaction 2SO2(g) + O2(g) ⇌2SO3(g) is 5. What will be the partial pressure of O2 at equilibrium when equal moles of SO3 and SO2 are present at equilibrium?

Histone proteins are rich in which of the following basic amino acids?

Alkane is obtained from which of the following Grignard reagent?

What is the total number of black coloured sulphides among Ag2S, Bi2S3, CoS, CuS, HgS, MnS, NiS, PbS, and SnS2.

Iodine(I2) reacts with Concentrated Nitric acid(HNO3)to give:

What is the order of rate of reaction of the following compound with phenyl magnesium bromide?

The compounds C2H5OC2H5 and CH3OCH2CH2CH3 are:

The thermal decomposition of Acetaldehyde (CH3CHO) occurs as : CH3CHO → CH4 + CO. The kinetic data of the thermal decomposition is given below. The rate expression thus can be given as:

In which of the following compounds, all the atoms are in one plane in all the possible conformations.

Which of the following is the correct structure of 4-bromo-3-methyl but-1-ene?

Which of the following order is true about the boiling points of HF, HCl, HBr and HI?

Which of these molecules have non-bonding electron pairs on the central atom?

SN2 Reactions are

Conversion of Chlorobenzene to 1-Chloro-4-methylbenzene is

Integral x/(x⁴+x² + 1) dx

The value of α for which the equation (α+5)x² – (2α+1)x + (α-1) = 0 has roots equal in magnitude but opposite in sign, is

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