Assertion (A): Glycine need not be taken in diet. Reason (R): Glycine is a non-essential amino-acid
a) Both A and R are wrong statements. b) A is correct, and R explains A. c) A is correct,... View Article
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Some bacteria are able to grow in Penicillin containing medium due to
a) Genetic Drift b) Reproductive isolation c) Natural selection d) Induced mutation Answer: c) Natural selection. Explanation: A colony of... View Article
The Size Of The Colloidal Particles May Range From________.
(A) 1 to 10 mm (B) 1 to 100 pm (C) 1 to 1000 nm (D) 10 to 100 pm... View Article
Butanenitrile may be prepared by heating_______.
(A) Butyl Alcohol with KCN. (B) Propyl Alcohol with KCN. (C) Butyl Chloride with KCN. (D) Propyl Chloride with KCN.... View Article
The maximum number of atoms that lie in the same plane in PCl5 molecule is ______.
(A) 5 (B) 4 (C) 3 (D) 2 The Correct Answer is (B) 4. Solution: Phosphorus pentachloride (PCl₅) has trigonal... View Article
The Number Of Moles Of KMnO4 Required To Oxidise 1 Mole Of Fe(C2O4) is________.
(A) 0.2 (B) 0.4 (C) 0.6 (D) 1.67 The Correct Answer is (C) 0.6 Solution: The number of electrons involved... View Article
What Is The Weight Of V2O5 Produced From 2g of VO and 5.75 g of Fe2O3?
(A) 5.07 g (B) 5.17 g (C) 5.27 g (D) 5.37 g The Correct Answer is (B) 5.17 g Solution:... View Article
124amu Of P4 Will Contain________.
(A) 4 Atoms os Phosphorus (B) 4NA Atoms of Phosphorus (C) NA Molecules of Phosphorus (D) Both (B) and (C)... View Article
When KMnO4 Reacts With H2O2 In Slightly Alkaline.Which of the following chemical element is formed?
(A) Mn2O3 (B) Mn+7 (C) Mn+2 (D) Mn2O3 The Correct Answer is (C) Mn+2 Solution: When KMnO4 Reacts With H2O2... View Article
The Shape Of ClO3- According To VSEPR Model Is
(A) Pyramidal (B) Tetrahedral (C) Square planar (D) Planar triangle The Correct Answer is (A) Pyramidal Solution: According to VSEPR... View Article
If ‘b’ Is Van Der Waal Constant Of Argon Then The Molecular Diameter Of Argon Molecule Can Be Represented By The Expression________.
(A) \(\begin{array}{l}[\frac{3b}{2\pi N_{A}}]^{1/3} \end{array} \) (B) \(\begin{array}{l}[\frac{3b}{2\pi N_{A}}]^{3/2}\end{array} \) (C) \(\begin{array}{l}[\frac{3b}{2\pi N_{A}}]^{1/2}\end{array} \) (D) \(\begin{array}{l}[\frac{3b}{16\pi N_{A}}]^{1/3}\end{array} \) The Correct Answer... View Article
Franz Saw A Huge Crowd Assembled In Front Of The Bulletin Board, But Did Not Stop. How Would You Evaluate His Reaction?
(A) Franz was too little to care about the news of lost battles. (B) Bad news had become normal, so... View Article
On Dry distillation of a mixture of calcium formate and the calcium acetate gives:
(A) HCHO. (B) CH3CHO. (C) CH3COCH3. (D) All Of These. The Correct Answer is (D) All Of These. Solution: All... View Article
Polyethylene Glycols Are Used In The Preparation Of Which .Of The Following Cleansing Agents?
(A) Soaps (B) Anionic detergents (C) Cationic detergents (D) Non-ionic detergents The Correct Answer is (D) Non-ionic detergents Solution: Non-ionic... View Article
How Many Lithium Atoms Are Present In A Unit Cell With Edge Length 3.5 Å And Density 0.53/cm-3? (Atomic Mass Of Li = 6.94):
(A) 1 (B) 2 (C) 4 (D) 6 The Correct Answer is (B) 2 Solution: The theoretical density of crystal,... View Article
Which Of The Following Is Not A Hypovalent Molecules?
(A) AlF3 (B) NH2+ (C) CH3+ (D) B2H6 The Correct Answer is (D) B2H6. Solution: The molecules with the central... View Article
The Oxidation Number Of Arsenic trisulfide (As2S3) is ____.
(A) +1 (B) +2 (C) +3 (D) -3 The Correct Answer is (D) -3 Solution: \(\begin{array}{l}As^{2}S^{3}\\2x + 3 * 2... View Article
On Combustion Of 25g Of An Unknown Hydrocarbon Produces 88g of CO2 and 9g of H2O. This Unknown Hydrocarbon Contains:
This Unknown Hydrocarbon Contains: (A) 18g of carbon and 7 g of hydrogen (B) 20g of carbon and 5 g... View Article
Which Of The Following Are Methods To Prepare Cyclopentanone?
The Correct Answer is Options (A) Explore more such questions and answers at BYJU’S.
Which Of The Following Compound Does Not Liberate Nitrogen Gas?
Treatment With Nitrous Acid? (A) Carbamide (B) Alkanamide (C) Primary amines (D) Secondary amines The Correct Answer is (D) Secondary... View Article
