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ssc cgl mock test in hindi tier I

ssc exam Q.The group of minerals chemically containing hydrocarbons is A. silicate group B. organic group C. oxide group D. hydride group Answer:  Option  B ssc exam
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You and I Magazine Monthly

muscle magazine Q.The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is A. Argon B. Xenon C. Helium D. Krypton Answer:  Option  C muscle magazine
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