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- Question
What is the systematic name of Mg(NO3)2?
Options- A. Manganese nitrite
- B. Magnesium nitrite
- C. Magnesium nitrate
- D. Manganese nitrate
- Correct Answer
- Magnesium nitrate
ExplanationMg(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.
- 1. What state of matter is Jello?
Options- A. Liquid
- B. Solid
- C. Colloid
- D. Gas Discuss
- 2. Which of the following is malleable?
Options- A. Ice
- B. Gold
- C. Stone
- D. Pottery Discuss
- 3. The main constituent of biogas is
Options- A. Butane
- B. Methane
- C. Hydrogen Sulphide
- D. Carbondioxide Discuss
- 4. In atomic reactors,graphite is used as
Options- A. lubricant
- B. fuel
- C. linear of the ractor
- D. moderator Discuss
- 5. 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
- 6. What is the systematic name of NH4ClO3 ?
Options- A. Ammonium Chloride
- B. Ammonium Chlorate
- C. Ammonium Chlorane
- D. Ammonium Chlorine Discuss
- 7. Li3PO4 compound name?
Options- A. Lithium perchlorate
- B. Lithium phyrite
- C. Lithium phosphate
- D. None Discuss
- 8. Which of the following is a Decomposition Reaction?
Options- A. 2HgO ----> 2Hg + O2
- B. 6NaNO3 ----> 6NaNO2 + 3O2
- C. ZnCO3 ----> ZnO + CO2
- D. All the above Discuss
- 9. Is water a Pure substance?
Options- A. TRUE
- B. FALSE Discuss
- 10. Which of the following is not a pure substance?
Options- A. Oxygen
- B. Carbon dioxide
- C. Water
- D. Milk Discuss
Chemistry problems
Search Results
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: 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: Methane
Explanation:
The 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.
Correct Answer: moderator
Correct Answer: Einstein's law
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.
Correct Answer: All the above
Explanation:
All the given reactions are Decomposition reactions.
Decomposition reaction is a reaction in which only one reactant is splitted into two or more products.
Correct Answer: TRUE
Explanation:
True, Water is a Pure substance and not a mixture.
We know that, A mixture is when two or more substances combine physically together. You can find that the mixture retains the properties of the original components.
In water, two hydrogen atoms combine with one oxygen atom chemically, forming a new substance that has properties different from hydrogen alone or oxygen alone.
Therefore, water is not a mixture; it is a compound and it is pure.
Correct Answer: Milk
Explanation:
Milk is not a pure substance since it has so many constituents that can be separated physically.
Compounds are pure substances formed from elements unlike mixtures.
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