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- Question
What are the particles emitted by radio active element after 3 consequtive disintegrations?
Options- A. 2 alpha 1 beta
- B. 1 alpha 1 beta
- C. 2 beta 1 alpha
- D. 2 beta 2 alpha
- Correct Answer
- 2 beta 1 alpha
- 1. The acid used in lead storage cells is
Options- A. Sulphuric acid
- B. Nitric acid
- C. Hydrochloric acid
- D. Phosphoric acid Discuss
- 2. Which acid is present in tomato?
Options- A. Sulphuric acid
- B. HCl
- C. Both A & B
- D. Citric acid Discuss
- 3. An example of an extensive property of matter is
Options- A. Volume
- B. Mass
- C. Density
- D. All the above Discuss
- 4. The nitrogenous waste of Human Beings is
Options- A. Ammonia
- B. Urea
- C. Ammonium Nitrate
- D. Uric Acid Discuss
- 5. A colored ion generally indicates a
Options- A. transition metal
- B. metalloid
- C. large in size
- D. Both B & C Discuss
- 6. ______ is used for making chemical apparatus like beakers, flasks etc.
Options- A. Potash glass
- B. Hard glass
- C. Jena glass
- D. Soda glass Discuss
- 7. The reactivity of an atom arises from
Options- A. the existence of unpaired electrons in the valence shell
- B. the potential energy of the valence shell
- C. the average distance of the outermost electron shell from the nucleus
- D. the sum of the potential energies of all the electron shells Discuss
- 8. Which of the following gas leaked in the Bhopal Gas tragedy in December 1984?
Options- A. Methyl isocyanate
- B. Methyl isochlorate
- C. Methyl Phosphate
- D. Methyl Isopropate Discuss
- 9. Arrange the following compounds in order of increasing acidity?
Options- A. o-cresol < phenol < o-nitrophtenol
- B. phenol < o-nitrophtenol < o-cresol
- C. o-nitrophtenol < o-cresol < phenol
- D. None of the above Discuss
- 10. which of the following molecule contains a nonpolar covalent bond?
Options- A. Br2
- B. CO2
- C. CCl4
- D. CO Discuss
More questions
Correct Answer: Sulphuric acid
Correct Answer: Citric acid
Correct Answer: All the above
Explanation:
Any properties that are dependent on the amount of matter are called as extensive properties of matter.
Examples are :: Mass, Volume, Density (M/V),...
Correct Answer: Urea
Correct Answer: transition metal
Explanation:
A colored ion generally indicates a transition metal.
Correct Answer: Hard glass
Correct Answer: the existence of unpaired electrons in the valence shell
Explanation:
The reactivity of an atom arises from the existence of unpaired electrons in the valence shell.
Correct Answer: Methyl isocyanate
Correct Answer: o-cresol < phenol < o-nitrophtenol
Correct Answer: Br2
Explanation:
Br-Br.
In Br2, two of the same atoms, pull on each side of the bond is equal making it as non-polar.
The other options all include a significantly more electronegative atom (the oxygens and the chlorine), so those bonds are all polar covalent.
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