Chemistry problems
- 1. 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 Also asked in: Bank Exams
Correct Answer: It is a monomer of cisisoprene
- 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
Correct Answer: ionic bond
- 3. Standard Electrode potential is measured in terms of
Options- A. Pyrometer
- B. Electrometer
- C. Thermometer
- D. Voltmeter Discuss
Correct Answer: Voltmeter
Explanation:
Voltmeter is used to measure Standard Electrode Potential
- 4. Which of the following is called 'the King of Chemicals' ?
Options- A. Nitric acid
- B. Hydrochloric acid
- C. Silver nitrate
- D. Sulphuric acid Discuss
Correct Answer: Sulphuric acid
Explanation:
Sulphuric 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.
- 5. Leakage in LP gas cylinders is easily detected by adding
Options- A. mercaptans
- B. propylene
- C. carbon disulphide
- D. phosgene Discuss
Correct Answer: mercaptans
Explanation:
mercaptans (or thioalcohols) have a foul odour
- 6. 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
Correct Answer: Ionic bond
- 7. Artificial radioactivity elements are present in
Options- A. s - block
- B. p - block
- C. d - block
- D. f - block Discuss
Correct Answer: f - block
- 8. The atoms of the elements which have same number of neutrons are called
Options- A. Isobars
- B. Isotopes
- C. Isotones
- D. None Discuss
Correct Answer: Isotones
- 9. 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
Correct Answer: Isotopes
- 10. Ozone is concentrated in the
Options- A. Stratosphere
- B. Troposphere
- C. Ionosphere
- D. Mesosphere Also asked in: AIEEE, Bank Exams, Analyst, Bank Clerk
Correct Answer: Stratosphere
Explanation:
Most of the ozone in the atmosphere is found in the layer of stratosphere, which begins about 10.16 kilometers (6.10 miles) above Earth's surface and extends up to about 50 kilometers (31 miles) altitude.
More in General Knowledge:
Programming
Copyright ©CuriousTab. All rights reserved.