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- Question
The main constituent of biogas is
Options- A. Butane
- B. Methane
- C. Hydrogen Sulphide
- D. Carbondioxide
- Correct Answer
- Methane
ExplanationThe main constituent of biogas is methane (55-70%), CO2 (30-45%) and some traces of gases such as H2S and ammonia.
Biogas is produced under anaerobic conditions; the process is denominated as anaerobic digestion.
- 1. In atomic reactors,graphite is used as
Options- A. lubricant
- B. fuel
- C. linear of the ractor
- D. moderator Discuss
- 2. Energy produced in nuclear reaction is given by
Options- A. Charle's law
- B. Grahm's law
- C. Gay - Lussac's law
- D. Einstein's law Discuss
- 3. A particle which is four times in mass and two times in charge that of proton is
Options- A. helium atom
- B. an alpha particle
- C. deuteron
- D. tritium Discuss
- 4. Isotopes of the atoms of same element have
Options- A. same number of neutrons
- B. same number of protons
- C. same atomic mass
- D. different chemical properties Discuss
- 5. Which one of the following laws explain the formation of carbon monoxide and carbon dioxide from carbon and oxygen
Options- A. Laws of conservation of mass
- B. Laws of multiple proportion
- C. Laws of reciprocal proportions
- D. Law of definite proportions Discuss
- 6. Which of the following is malleable?
Options- A. Ice
- B. Gold
- C. Stone
- D. Pottery Discuss
- 7. What state of matter is Jello?
Options- A. Liquid
- B. Solid
- C. Colloid
- D. Gas Discuss
- 8. What is the systematic name of Mg(NO3)2?
Options- A. Manganese nitrite
- B. Magnesium nitrite
- C. Magnesium nitrate
- D. Manganese nitrate Discuss
- 9. What is the systematic name of NH4ClO3 ?
Options- A. Ammonium Chloride
- B. Ammonium Chlorate
- C. Ammonium Chlorane
- D. Ammonium Chlorine Discuss
- 10. Li3PO4 compound name?
Options- A. Lithium perchlorate
- B. Lithium phyrite
- C. Lithium phosphate
- D. None Discuss
Chemistry problems
Search Results
Correct Answer: moderator
Correct Answer: Einstein's law
Correct Answer: an alpha particle
Correct Answer: same number of protons
Correct Answer: Laws of multiple proportion
Correct Answer: Gold
Explanation:
Here in the given options, Gold is a malleable substance.
Malleable substance means a metal or a material able to be hammered or pressed into shape without breaking or cracking. i.e, tensile.
Correct Answer: Colloid
Explanation:
Jello is a colloid, a semi-rigid structure i.e, semi-solid suspended in a liquid. When you Heat it up a bit and you'll break the protein bonds of the gelatin and it will liquefy completely and if you freeze, it becomes solid.
Correct Answer: Magnesium nitrate
Explanation:
Mg(NO3)2 is Magnesium nitrate.
In the case of Mg(NO3)2, the metal in the compound is magnesium (Mg), and the non-metal here is called the nitrate ion (NO3). This makes the name of the compound simply magnesium nitrate.
Correct Answer: Ammonium Chlorate
Explanation:
In common we all call the systematic name of as Ammonium Chlorate. But originally the systematic name is azanium trioxidochlorate.
Correct Answer: Lithium phosphate
Explanation:
The given compund name is Lithium phosphate.
Lithium phosphate is a white crystal at room temperature. It is slightly soluble in water.
It can be used to produce glass, disk, colorful phosphor powder. It can also be used as a catalyst in some reactions.
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