Discussion
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- Question
The metallurgical process in which a metal is obtained in a fused state is called
Options- A. smelting
- B. roasting
- C. calcinations
- D. froth floatation
- Correct Answer
- smelting
- 1. The main chemical constituent of clay is
Options- A. silicon oxide
- B. aluminium borosilicate
- C. zeolites
- D. aluminium silicate Discuss
- 2. The most extensive, commercially useful source of thorium as monazite sand occurs in India at
Options- A. Orissa coast
- B. Travancore coast
- C. West Bengal coast
- D. Gujarat coast Discuss
- 3. The law which states that the amount of gas dissolved in a liquid is proportional to its partial pressure is
Options- A. Dalton's law
- B. Gay Lussac's law
- C. Henry's law
- D. Raoult's law Discuss
- 4. The most malleable metal is
Options- A. platinum
- B. silver
- C. iron
- D. gold Discuss
- 5. The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is
Options- A. 2.05 gram
- B. 3.05 gram
- C. 4.05 gram
- D. 5.05 gram Discuss
- 6. The heat required to raise the temperature of body by 1 K is called
Options- A. specific heat
- B. thermal capacity
- C. water equivalent
- D. None of the above Discuss
- 7. Zone refining is used for the purification of
Options- A. Au
- B. Ge
- C. Ag
- D. Cu Discuss
- 8. The Latin word formica means ant. The name formic acid is derived from this Latin word because
Options- A. this acid, in ancient times, was used to eliminate ant-hills
- B. this corrosive acid is secreted by ants to drive away their enemies
- C. this acid was first obtained by the distillation of ants
- D. ants are attracted by the odour of this acid Discuss
- 9. The formula C6H5-CO-CH3 represents
Options- A. Acetone
- B. Acetic acid
- C. Acetophenone
- D. Phenyl acetate Discuss
- 10. The mass number of a nucleus is
Options- A. always less than its atomic number
- B. the sum of the number of protons and neutrons present in the nucleus
- C. always more than the atomic weight
- D. a fraction Discuss
Chemistry problems
Search Results
Correct Answer: aluminium silicate
Correct Answer: Travancore coast
Correct Answer: Henry's law
Correct Answer: gold
Correct Answer: 3.05 gram
Correct Answer: thermal capacity
Correct Answer: Ge
Correct Answer: this acid was first obtained by the distillation of ants
Correct Answer: Acetophenone
Correct Answer: the sum of the number of protons and neutrons present in the nucleus
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