General Knowledge

Science & Technology

Easy

The basis for modern Periodic Table is _________.

Atomic Mass

Physical Property

Atomic Weight

Atomic Number

✅ Correct Option: 4

The modern periodic table is based on atomic number, as proposed by Henry Moseley. Elements are arranged in increasing order of atomic number.

2025: 20 May Shift 1

Arrange the following in the increasing order:

(A) Micrometre

(B) Centimetre

(D) Kilometre

Choose the correct answer from the options given below:

2026: 21 May Shift 1

Match List-I with List-II

List-I (Process)	List-II (Energy Change)
(A) Heat is evolved	(I) Chemiluminiscent Reaction
(B) Heat is absorbed	(II) Photochemical Reaction
(C) Light is required	(III) Endothermic Reaction
(D) Light is evolved	(IV) Exothermic Reaction

Choose the correct answer from the options given below:

2025: 16 May Shift 1

Who is credited with the invention of the first Indian indigenous nuclear reactor?

2023: 1 June Shift 1

Match List - I with List - II.

List - I	List - II
(1) Indian Rare Earths Limited	(I) Bengluru
(2) Indian Space Research Organisation	(II) Thiruvananthpuram
(3) Vikram Sarabhai Space Centre	(III) Jadugoda
(4) Uranium Corporation of India	(IV) Aluva (Kerala)

Choose the most appropriate answer from the options given below:

2025: 2 June Shift 2

Which of the following is a chemical change?

2025: 20 May Shift 2

Who among the following discovered that when light traverses a transparent material, some of the light that is deflected changes in wavelength?

Solution