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When 1- Methylcyclohexene is treated with HCL it produces:

(A) 1-Chloro-cyclohexane (B) 1-Chloro-2-methylcyclohexane (C) 1-Chloro-1-methylcyclohexane (D) 2-Chloro-1-methylcyclohexane The Correct Answer is (C) 1-Chloro-1-methylcyclohexane. Solution: When 1- Methylcyclohexene is treated... View Article

An element with a molar mass of 27 g/mol forms a cubic unit cell with an edge length of 4.05 * 10-8 cm. If the density of the element is 2.7 g/cm-3. What will be the nature of a cubic unit cell?

(A) Face Centred Cubic (FCC) (B) Cubic-Close packed (CCP) (C) Body-Centred Cubic (BCC) (D) Both (A)and (B) The Correct Answer... View Article

Standard entropy of X2, Y2 and XY3 are 60, 40 and 50 ZJK-1 mol-1, respectively. For the reaction, 1/2X2 + 3/2Y2 → XY3 ; △h =-30kj to be at equilibrium. What will be the temperature?

(A) 500 K (B) 750 K (C) 1000 K (D) 1250 K The Correct Answer is (B) 750 K Solution:... View Article

One mole of an ideal gas expands reversibly at a constant temperature of 300 k from an initial volume of 10 lit to a final volume of 20 lit. What will be the work done in expanding the gas?

(A) 750J (B) 1500J (C) 1728J (D) 3456J The Correct Answer is (C) 1728J Solution: As given: Temperature, t =300... View Article

A sample of CaCO3 is 50% pure. On heating 1.12 L of CO2 (at STP) is obtained. What is the total amount of residue left (assuming non-volatile impurity)?

(A) 2.8 g (B) 3.8 g (C) 7.8 g (D) 8.9 g The Correct Answer is (C) 7.8 g Solution:... View Article

100 mL of 0.01M KMnO4 oxidised 100 mL H2O2 in acidic medium. The volume of same KMnO4 required in strong alkaline medium to oxidise 100 mL of same H2O2 is:

(A) 500 mL (B)\(\begin{array}{l} \frac{100}{3} mL \end{array} \) (C)\(\begin{array}{l} \frac{300}{3} mL \end{array} \) (D)\(\begin{array}{l} \frac{500}{3} mL \end{array} \) The Correct... View Article

Sodium phenoxide when heated with CO2 under pressure at 125°C produces ______.

(A) Salol (B) Salicyladehyde (C) Sodium benzoate (D) Sodium Salicylate The Correct Answer is (D) Sodium Salicylate Solution: Sodium phenoxide... View Article

Which of the following order is true about the flocculation power in the coagulation of negative solution?

(A) Al3+ > Ba2+ > Na+ (B) Ba2+ > Na+ > Al3+ (C) Na+ > Al3+ > Na+ (D) Na+... View Article

In an acidic medium, H2O2 changes K2Cr2O7 to CrO5. What is the oxidation state of Cr in CrO5?

(A) +2 (B) +3 (C) +5 (D) +6 The Correct Answer is (D) +6 Solution: In an acidic medium, H2O2... View Article

LPG is a mixture of n-butane & iso-butane. What is the volume of oxygen required to burn 1 kg of LPG at NTP?

(A) 500 L (B) 1000 L (C) 2240 L (D) 2690 L The Correct Answer is (D) 2690 L Solution:... View Article

Assertion: Alcohols are easily protonated than phenols. Reason:Alcohols undergo intermolecular hydrogen bonding due to the presence of highly electronegative oxygen.

(A) Assertion is true, but Reason is false. (B) Both Assertion and Reason are false. (C) Both Assertion and Reason... View Article

Four solutions of K2SO4 with the following concentration 0.1m, 0.01m, 0.001m and 0.0001m are available. The maximum value of van’t Hoff factor (i) corresponds to

(A) 0.1 m Solution (B) 0.01 m Solution (C) 0.001 m Solution (D) 0.0001 m Solution The Correct Answer is... View Article

What type of chemical reactions is NH3 + HCL → NH4Cl.

(A) Combination Reaction (B) Substitution Reaction (C) Decomposition Reaction (D) Double Displacement Reaction The Correct Answer is (A) Combination Reaction... View Article

5.0 g of sodium hydroxide (molar mass 40 g mol–1) is dissolved in little quantity of water and the solution is diluted up to 100 ml. what is the molarity of the resulting solution?

(A) 0.1 mol dm-3 (B) 1.0 mol dm-3 (C) 1.25 mol dm-3 (D) 0.125 mol dm-3 The Correct Answer is... View Article

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: \(\begin{array}{l} H_{2} + \frac{1}{2}O_{2}\rightarrow H_{2}O... 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... 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... 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... 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: \(\begin{array}{l} 2SO_{2}... 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... View Article

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