Options:
- A. Alpha emission
- B. Beta emission
- C. Both A & B
- D. Radioactivity
View Answer
B. Beta emission
Chemistry
A substance having very high vapour pressure at its melting point on heating will show_______________?
Options:
- A. Melting
- B. Sublimation
- C. Decomposition
- D. Condensation
View Answer
B. Sublimation
Which one of the following looks odd__________________?
Options:
- A. H2SO4
- B. KMnO4
- C. H2S
- D. K2CrO4
View Answer
C. H2S
Bohrs model is contradicted by__________________?
Options:
- A. Plancks theory
- B. Dual nature of matter
- C. Heisenbergs uncertainty principle
- D. All of these
View Answer
C. Heisenbergs uncertainty principle
The process of fermentation involves all the enzymes except__________________?
Options:
- A. Diastase
- B. Invertase
- C. Zymase
- D. Sucrase
View Answer
D. Sucrase
The metallic sound produced by engine due to the pre-ignition of fuel is called _______________?
Options:
- A. knocking
- B. reforming
- C. cracking
- D. a and c
View Answer
A. knocking
The organic compounds having very high molecular weight are called _________________?
Options:
- A. carboxylic acids
- B. ketones
- C. aldehydes
- D. polymers
View Answer
D. polymers
The environment in which a system is studied is __________________?
Options:
- A. State function
- B. phase
- C. surrounding
- D. state
View Answer
C. surrounding
Which of the following has strongest intermolecular forces of attraction ?
Options:
- A. Hydrogen (H2)
- B. Chlorine (Cl2)
- C. lodine (I2)
- D. Methane (CH4)
View Answer
C. lodine (I2)
A solid may be made up of_________________?
Options:
- A. Atoms
- B. Ions
- C. Molecules
- D. A, B, and C
View Answer
D. A, B, and C