The neutral atom’s two isotopes differ in the number of
1 Electron shells
2 Protons
3 Valence electrons
4 Neutrons
Which of the following reactions is used for increasing the number of carbon atoms in a chain? 1 Substitution reaction 2 Wurtz reaction 3 Friedel – Crafts reaction 4 Cannizzaro’s reaction
The main important feature of neutron bomb is that when it is dropped on a city, it would damage 1 Both the living organisms and buildings 2 The buildings but not the living organisms 3 The living organisms but spare buildings 4 None of these
3 Answers GTY, Indian Railways, Option 3, RRB, RRC Railway Recruitment Cell,
Why is food necessary for human body ?
Enriched uranium used in a nuclear reactor is 1 Uranium freed of all impurities 2 Uranium treated with radiation 3 Uranium alloyed with aluminum 4 Uranium with a high percentage of a particular isotope
plants in a food chain are actually the
2 Answers Competitive Exams, Stenographer,
Why the diesel generator suddenly increases the output voltage and avr get shorted ... And also increases the load the generator decreases the voltage why ..and also the output power in amps generated in 30 kv diesel generator ..
What is the zoology ?
Which is/are the important raw material(s) required in cement industry? 1 Limestone 2 Gypsum & clay 3 Clay 4 Limestone & clay
Long distance photography is facilitated by 1 Visible light 2 X-rays 3 Infrared rays 4 Ultraviolet rays
Radioactive disintegration of uranium ultimately results in formation of 1 Radium 2 Thorium 3 Polonium 4 Lead
Wood is the main raw material for the manufacture of 1 Paint 2 Paper 3 Ink 4 Gun powder
5 Answers Jharkhand Staff Selection Commission JSSC, RRB,
Which are the important pulsating nebulae?