Lakshya Education MCQs

Question: Who first published the periodic table?
Options:
A.John Dalton
B.Julius Lothar Meyer
C.Henry Moseley
D.Dmitri Mendeleev
Answer: Option D

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More Questions on This Topic :

Question 1. The most suitable vessel for storing concentrated sulphuric acid is
  1.    Copper vessel
  2.    Aluminium vessel
  3.    Glass vessel
  4.    Earthen vessel
Answer: Option C
Question 2. Which one of the following nonmetals shows allotropy in the liquid state?
  1.    Carbon
  2.    Sulphur
  3.    Phosphorous
  4.    Bromine
Answer: Option B
Question 3. Sulphuric acid is
  1.    Monobasic
  2.    Dibasic
  3.    Tribasic
  4.    Tetrabasic
Answer: Option B
Question 4. Which one is the most reactive halogen?
  1.    Iodine
  2.    Bromine
  3.    Fluorine
  4.    Chlorine
Answer: Option C
Question 5. The elements with atomic numbers 9, 17, 35, 53, 85 are all
  1.    Heavy metals
  2.    Noble gases
  3.    Light metals
  4.    Halogens
Answer: Option D
Question 6. Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has
  1.    High bond dissociation energy
  2.    Smaller atomic radius
  3.    Stable half filled 2p sub level
  4.    High nuclear charge
Answer: Option C

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