Papepr is manufactured by
1 Wod and resin
2 Wood, sodium and bleaching powder
3 Wood and bleaching powder
4 Wood, calcium, hydrogen sulphite and resin
The difference between a nuclear reactor and an atom bomb is that 1 No chain reaction takes place in nuclear reactor while in the atomic bomb there is a chain reaction 2 No chain reaction takes place in atomic bomb while it takes place in a nuclear reactor 3 The chain reaction in nuclear reactor is controlled 4 None of these
Why is food necessary for human body ?
How many colours the sunlight spectrum has ? 1 Five 2 Three 3 Seven 4 Nine
In which year was the meteorology department founded?
Rayon is chemically 1 Glucose 2 Amylase 3 Cellulose 4 Pectin
what is the smallest fish?
Polythene is industrially prepared by the polymerization of 1 Methane 2 Styrene 3 Acetylene 4 Ethylene
3 Answers Amna Industries, HFI,
Bagasse, a by-product of sugar manufacturing industry, is used for the production of 1 Nylon 2 Glass 3 Paper 4 Alcohol
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
In which year the solar observatory in kodikanal founded?
Bell metal is an alloy of 1 Brass an nickel 2 Zinc and copper 3 Tin and copper 4 None of these
Which of the following elements is not-radioactive? 1 Uranium 2 Thorium 3 Plutonium 4 zirconium