In an atomic nucleus, neutrons and protons are held together by
1 Gravitational forces
2 Magnetic forces
3 Exchange force
4 Coulombic forces
Which of the following is used in making artificial sweetener saccharin? 1 Benzene 2 Toluene 3 Phenol 4 Aniline
Monazite is an ore of 1 Iron 2 Titanium 3 Thorium 4 Zirconium
what is the smallest fish?
When did the most luminous nova appear?
How does common salt help in separating soap from the solution after saponification? 1 By decreasing solubility of soap 2 By increasing solubility of soap 3 By decreasing density of soap 4 None of these
What is the colouring matter in plants called
Bagasse, a by-product of sugar manufacturing industry, is used for the production of 1 Nylon 2 Glass 3 Paper 4 Alcohol
define cartography?
Who is the second female cosmonaut?
Study of life in outer space is called A) Endobiology B) Exobiology C) Entrobiology D) Neobiology
A mixture of water and alcohol can be separated by 1 Filtration 2 Evaporation 3 Distillation 4 Decantation
Who commanded the challenger’s first flight?