9. Half-life of radioactive material does not depend upon (1) Initial concentration of material (2) Decay constant (3) Type of radioisotope (4) Energy emission Understanding Half-Life: What Factors Do Not […]
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CSIR NET Previous Year Questions on Biochemistry Atoms & Molecules
Hybridization and Bond Strength in sp³, sp², and sp¹ Orbitals
Arrange them according to decreasing order of strength (1) sp3>sp2>sp1 (2) sp1>sp2>sp3 (3) sp3>sp1>sp2 (4) sp1>sp3>sp2 Hybridization and Bond Strength: Arranging sp³, sp², and sp¹ Orbitals Understanding Hybridization and Bond […]
CSIR NET Previous Year Questions on Biochemistry Atoms & Molecules
Energy Released on Breaking the H-H Covalent Bond
What would be approx. energy released on breaking H- H covalent bond (1) 4.32 x 105 J/mol (2) 1 x 10-19 J/mol (3) 5 x 10-19 J/mol (4) 8 x […]
CSIR NET Previous Year Questions on Biochemistry Atoms & Molecules
What Determines Bond Strength in Covalent Compounds
Which of the following bonds will be most difficult to break? (1) C-O (2) C-P (3) C-N (4) C-S Strongest Covalent Bonds: Which Bond is Hardest to Break? What Determines […]
CSIR NET Previous Year Questions on Biochemistry Atoms & Molecules
Understanding Atomic Interaction Energy: Identifying Bond Types
The interaction energy between atom A and B is 400 kJ/mol-1. The type of interaction between them is (1) pi – pi. (2) covalent. (3) ion-dipole. (4) hydrogen bond. Understanding […]
CSIR NET Previous Year Questions on Biochemistry Atoms & Molecules
Covalent Bond Formation: How Atoms Share Electrons
Covalent bond formation between two atoms takes place by (1) Transfer of electron from one atom to other (2) One Side sharing of electrons (3) Electron sharing by two electronegative […]
CSIR NET Previous Year Questions on Biochemistry Atoms & Molecules
Crystal Structure of NaCl: Coordination Number and Ionic Arrangement
In crystalline NaCl, how many chloride ions surround each sodium ion? (1) Four (2) Six (3) Eight (4) Ten Crystal Structure of NaCl: Coordination Number and Ionic Arrangement What is […]
CSIR NET Previous Year Questions on Biochemistry Atoms & Molecules
Isotones in Nuclear Science
2. Which of the following pair represents isotones? (1) 3H, 4He (2) 15N, 14N1 (3) 140Ba, 140Th (4) 1H, 3H Understanding Isotones: A Guide to Identifying Nuclear Similarities What […]
CSIR NET Previous Year Questions on Biochemistry Atoms & Molecules
Isotopes: Hydrogen, Deuterium, Tritium, and Carbon-14 Decay
From the following statements, A. Hydrogen, Deuterium and Tritium differ in the number of protons B. Hydrogen, Deuterium and Tritium differ in the number of neutrons C. Both Deuterium and […]
CSIR PYQ Biochemistry-Conformation of Proteins
Understanding Stability and Instability in Protein Folding
Which of the following is most unstable condition in protein folding? (1) Non-polar side chain exposed to outside (2) Polar side chain present in core of protein (3) Non polar […]
