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- Question
All atoms of uranium have the same
Options- A. Atomic mass
- B. Number of electrons
- C. Atomic number
- D. Mass number
- Correct Answer
- Atomic number
ExplanationThere are many isotopes of uranium and all of them have same atomic number i.e, sum of nmber of neutrons and protons.
- 1. Infiltration is the process by which rainwater becomes
Options- A. river water
- B. ground water
- C. salt water
- D. ocean water Discuss
- 2. Which compound is a saturated hydrocarbon?
Options- A. Alkene
- B. Alkane
- C. Alkine
- D. All of the above Discuss
- 3. Alloy of copper and zinc is called
Options- A. Bronze
- B. Gold
- C. Silver
- D. Brass Discuss
- 4. The element gold occurs in which period?
Options- A. 11
- B. 5
- C. 6
- D. 7 Discuss
- 5. The process of conversion of sugar to alcohol is called
Options- A. Moulding
- B. Infection
- C. Fermentation
- D. Alcohol fixation Discuss
- 6. Which of the following is not a type of chemical weathering?
Options- A. Corrosion
- B. Solution
- C. Oxidation
- D. Carbonation Discuss
- 7. Calcium salts used as fertilizer is:
Options- A. Calcium Carbide
- B. Calcium Carbonate
- C. Calcium Cyanide
- D. Calcium Sulphate Discuss
- 8. Which one of the following forms of phosphorus is most reactive?
Options- A. Black phosphorus
- B. White phosphorus
- C. Violet phosphorus
- D. Red phosphorus Discuss
- 9. What is the common characteristic of the elements of the same group in the periodic table?
Options- A. Electrons in outer most shell
- B. Total number of electrons
- C. Total number of protons
- D. Atomic weight Discuss
- 10. What is an exothermic reaction?
Options- A. Reaction in which heat is released.
- B. Reaction in which heat is absorbed.
- C. Reaction in which neither heat is released nor absorbed.
- D. None Discuss
Chemistry problems
Search Results
Correct Answer: ground water
Explanation:
The process of absorbtion of rain water by the soil on the earth is called infiltration. By this process, the rain water that falls on the soil becomes ground water.
Correct Answer: Alkane
Explanation:
Alkanes are saturated hydrocarbons. Saturated means that the hydrocarbon has only single bonds and that the hydrocarbon contains the maximum number of hydrogen atoms for each carbon atom.
Correct Answer: Brass
Correct Answer: 6
Correct Answer: Fermentation
Correct Answer: Corrosion
Explanation:
Chemical weathering is the process of altering rocks chemically when they are broken down. It includes hydrolysis, oxidation, acid rain, etc...
Correct Answer: Calcium Sulphate
Correct Answer: White phosphorus
Correct Answer: Electrons in outer most shell
Correct Answer: Reaction in which heat is released.
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