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- Question
Which of the following is called 'the King of Chemicals' ?
Options- A. Nitric acid
- B. Hydrochloric acid
- C. Silver nitrate
- D. Sulphuric acid
- Correct Answer
- Sulphuric acid
ExplanationSulphuric acid is called the King of Chemicals because it is used in the preparation of a very large number of other useful chemicals such as hydrochloric acid, nitric acid, dyes, drugs etc. In fact the annual production of shulpuric acid in a country is a measure of the economy of the country.
- 1. Standard Electrode potential is measured in terms of
Options- A. Pyrometer
- B. Electrometer
- C. Thermometer
- D. Voltmeter Discuss
- 2. A bond formed by the transfer of electrons betwwen atoms of the elements is called
Options- A. ionic bond
- B. covalent bond
- C. co ordinate bond
- D. none Discuss
- 3. Which among the following is false about natural rubber?
Options- A. It is an elastomer
- B. It is a monomer of cisisoprene
- C. Natural rubber is a polymer of chloroprene
- D. It is heated with sulphur compounds to improve its properties Discuss
- 4. Which of the following gases is heavier than oxygen?
Options- A. Carbon dioxide
- B. Ammonia
- C. Methane
- D. Helium Discuss
- 5. Which of the following is also known as Carbolic Acid?
Options- A. Phenol
- B. Hydroxide
- C. Sulphuric Acid
- D. Ethanol Discuss
- 6. Leakage in LP gas cylinders is easily detected by adding
Options- A. mercaptans
- B. propylene
- C. carbon disulphide
- D. phosgene Discuss
- 7. A bond formed by the transfer of electrons between atoms of the elements is called
Options- A. Ionic bond
- B. Covalent bond
- C. Co-ordinate bond
- D. Hydrogen bond Discuss
- 8. Artificial radioactivity elements are present in
Options- A. s - block
- B. p - block
- C. d - block
- D. f - block Discuss
- 9. The atoms of the elements which have same number of neutrons are called
Options- A. Isobars
- B. Isotopes
- C. Isotones
- D. None Discuss
- 10. The atoms of the elements having same atomic number but different mass number are called
Options- A. Isobar
- B. Isotopes
- C. Iso electronic
- D. Isotones Discuss
Chemistry problems
Search Results
Correct Answer: Voltmeter
Explanation:
Voltmeter is used to measure Standard Electrode Potential
Correct Answer: ionic bond
Correct Answer: It is a monomer of cisisoprene
Correct Answer: Carbon dioxide
Correct Answer: Phenol
Correct Answer: mercaptans
Explanation:
mercaptans (or thioalcohols) have a foul odour
Correct Answer: Ionic bond
Correct Answer: f - block
Correct Answer: Isotones
Correct Answer: Isotopes
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