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SSC CGL 2021 PYQ — Question 33

SSC CGL - 24 Aug 2021 - Shift 3 • General Awareness • Q33

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In the following passage, some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each blank.
John was an artist (1)______ profession. He was very (2)______ at his work and could
(3)______ any subject he could think of, but circumstances forced him to (4)______ in
(5)______ the work of renowned artists.

The Periodic Law as we know it today owes its development to:

Show answer & explanation

Correct answer: D

Explanation

The correct answer is option 4 i.e. Dmitri Mendeleev

 

The Periodic Law was developed by Russian chemist, Dmitri Mendeleev (1834-1907).

  • Modern Periodic Table:
  • The Modern Periodic Table is classified into the following elements - p-block, s-block, d-block, and f-block.
  • The p-block elements include chalcogens, pnictogens, halogens, inert gases.
    • The 18th group is known as Inert gas, zero groups, Nonreactive gases.
    • The 17th group is known as Halogen.
    • The 16th group is known as Chalcogen.
    • The 15th group is known as Pnictogen.
  • The s-block elements include alkali metals and alkaline earth metals.
  • The d-block elements include Transition elements.
  • The f-block elements include Inner Transition Elements.