Discussion
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- Question
Atomic number of which of the following elements is greater than that of Calcium?
Options- A. Chlorine
- B. Argon
- C. Sulphur
- D. Scandium
- Correct Answer
- Scandium
- 1. According to Dalton?s Atomic Theory, the smallest indivisible particles of matter is called ______.
Options- A. molecule
- B. atom
- C. compound
- D. element Discuss
- 2. Which of the following is a greenhouse gas or a gas which can deplete the ozone layer?
Options- A. BBr3
- B. NH3
- C. CH2N2
- D. CCl2F2 Discuss
- 3. Oxygen molecule is ______.
Options- A. Monoatomic
- B. Diatomic
- C. Triatomic
- D. Polyatomic Discuss
- 4. Molybdenite is an ore/mineral of
Options- A. Molybdenum
- B. Nickel
- C. Silver
- D. Tin Discuss
- 5. _________ gets converted to phosgene, when exposed to sunlight.
Options- A. Chloroform
- B. Acetone
- C. Benzene
- D. Propylene Discuss
- 6. Which among the following is false about acids?
Options- A. They give H+ ions in aqueous solution
- B. Most acids contain hydrogen
- C. They turn blue litmus red
- D. They are bad conductor of electricity in aqueous solution Discuss
- 7. Pentane has _____ structural isomers.
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
- 8. Sphalerite is an ore/mineral of
Options- A. Mercury
- B. Molybdenum
- C. Silver
- D. Zinc Discuss
- 9. Which of these is not a macronutrient for Plants?
Options- A. Nitrogen
- B. Phosphorus
- C. Potassium
- D. Chlorine Discuss
Chemistry problems
Search Results
Correct Answer: atom
Correct Answer: CCl2F2
Correct Answer: Diatomic
Correct Answer: Molybdenum
Correct Answer: Chloroform
Correct Answer: They are bad conductor of electricity in aqueous solution
Correct Answer: 3
Correct Answer: Zinc
Correct Answer: Chlorine
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