Options:
- A. 1.008 x 10-3
- B. 5.5 x 10-4
- C. 1.84 x 10-4
- D. 1.673 x 10-3
View Answer
B. 5.5 x 10-4
Chemistry
All the transition elements show_________________?
Options:
- A. Similar physical properties
- B. Similar chemical properties
- C. Both A and b
- D. None
View Answer
D. None
Which of the following elements conduct electricity and also melts below 100
Options:
- A. Aluminium
- B. Sodium
- C. Carbon
- D. Sulphur
View Answer
B. Sodium
How many isotopes have odd atomic number ?
Options:
- A. 154
- B. 280
- C. 86
- D. 300
View Answer
C. 86
Which of the following terms is used for the mass of chlorine 35.5 ?
Options:
- A. relative atomic mass
- B. mass number
- C. atomic weight
- D. relative isotopic mass
View Answer
A. relative atomic mass
Which of the following solids show anisotropy___________________?
Options:
- A. Plastic
- B. Glass
- C. Rubber
- D. None of the above
View Answer
D. None of the above
The use of antifreeze in the automobile radiator is an important application of__________________?
Options:
- A. constitutive property
- B. additive property
- C. colligative property
- D. intrinsic property
View Answer
C. colligative property
In solids the temperature is the measure of__________________?
Options:
- A. Average kinetic energy of molecules
- B. Vibrational kinetic energy
- C. Translational kinetic energy
- D. None of the above
View Answer
B. Vibrational kinetic energy
The compound which is added to leaded gasoline to save engine from lead oxide and lead sulphate deposits is__________________?
Options:
- A. Ethylene iodide
- B. Ethylene bromide
- C. Ethylene chloride
- D. Ethylene fluoride
View Answer
B. Ethylene bromide