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Ozone attacks
1 Mercury and silver
2 Copper
3 Silver and iron
4 None of these
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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,
In laundry soaps, a material called ‘filler’ is used. Which of the following is a ‘filler? 1 Talc 2 Sodium silicate 3 Soda ash 4 Sodium phosphate
How does a RCCB work? Difference between ELCB & RCCB?
Isotopes are separated by 1 Filtration 2 Sublimation 3 Distillation 4 Crystallization
10 Answers Bank Exams, dpdc, MPSC, NIFT, State Bank Of India SBI,
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
Which of the following metals was first discovered by man? 1 Bronze 2 Silver 3 Iron 4 Copper
Which type of fire extinguisher is used for petroleum fire? 1 Foam type 2 Soda acid type 3 Powder type 4 None of these
plants in a food chain are actually the
2 Answers Competitive Exams, Stenographer,
When a person sends a message to someone with the Internet, there are steps that happen to the recipient to receive the message. How does the recipient know that the message was not edited by someone else?
Combustion is the process in which 1 Heat is produced 2 Light is produced 3 Heat and light are produced 4 None of these
According to Dalton’s atomic theory, the smallest particle which can exist independently is 1 An atom 2 A molecule 3 A cation 4 An anion
What is super nova?
Biological Sciences 
