Options:
- A. 6.022 x 1023
- B. 3.01 x 1023
- C. 2 x NA
- D. 4 x 6.022 x 1023
View Answer
B. 3.01 x 1023
Chemistry
Bucky balls is an allotropic from of__________________?
Options:
- A. Sulphur
- B. Carbon
- C. Silica
- D. Tin
View Answer
B. Carbon
Isomorphic substances have _______________?
Options:
- A. Same physical and chemical properties
- B. Same physical and different chemical properties
- C. Different physical and same chemical properties
- D. Different physical and chemical properties
View Answer
D. Different physical and chemical properties
The pressure during the molar heat of fusion is kept________________?
Options:
- A. 0 atmosphere
- B. one atmosphere
- C. 2 atmosphere
- D. 10 atmosphere
View Answer
B. one atmosphere
All the enthalpy changes are________________?
Options:
- A. Negative
- B. Positive
- C. May or may not be A or B
- D. none
View Answer
C. May or may not be A or B
Which has strongest bonding in the solid state ?
Options:
- A. Hydrogen Chloride (HCI)
- B. Chlorine (Cl2)
- C. Xenon(Xe)
- D. Sodium Chloride (NaCI)
View Answer
D. Sodium Chloride (NaCI)
When the atoms of third layer are arranged in such a way that they directly lie above the atoms of first layer then this arrangement is called_________________?
Options:
- A. ABAB (hexagonal)
- B. ABCABC (Cubic)
- C. Orthor hombic
- D. Rhombohedral
View Answer
A. ABAB (hexagonal)
Which one is false for evaporation ?
Options:
- A. Surface phenomenon
- B. Continuous
- C. Exothermic
- D. Cause cooling
View Answer
C. Exothermic
Vapour pressure is not affected by_______________?
Options:
- A. Surface area
- B. temperature
- C. intermolecular forces
- D. atmospheric pressure
View Answer
A. Surface area
Which one of the following does not show hydrogen bonding?
Options:
- A. Water
- B. Ethyl alcohol
- C. Phenol
- D. Diethyl ether
View Answer
D. Diethyl ether