GK-General Science Question and Answer
GK-General Science Question and Answer
34. Which of the following was to be discovered first in the chromospheres of the sun?
- Krypton
- Xenon
- Helium
- Neon
35. Which of the following is in liquid form at room temperature?
- Lithium
- Sodium
- Francium
- Cerium
37. Which of the following are the ingredients of gun metal?
- Iron, Zinc, Titanium
- Iron, tin
- Iron, Brass, Tin
- Copper, Tin
40. Actinides are the elements with atomic numbers from
- 97 to 104
- 101 to 115
- 89 to 103
- 36 from 43