sivaleeba10 Asked: June 2023 refining is1 extracting petroleum gas2 separation of various fractions of petroleum3 heating of coal4 sedimentation of fossil fuels
sivaleeba10 Asked: June 2023 long chain of molecules containing thousands of similar smaller molecules name the following
sivaleeba10 Asked: June 2023 a fossil fuel formed over millions of years from wood name the following
sivaleeba10 Asked: June 2023 other than chlorine which of the following is used for disinfecting water 1 neon2 carbon dioxide3 hydrochloric acid4 ozone
sivaleeba10 Asked: June 2023 which of these is used to fill a balloon1 neon2 argon3 helium4 none of these
sivaleeba10 Asked: June 2023 the lowest temperature at which a combustible substance starts burning name the following
sivaleeba10 Asked: June 2023 metals teact with oxygen to produce oxides and non metals react with oxygen to produce oxides
sivaleeba10 Asked: June 2023 coal tar has an smell1 unpleasant2 pleasant3 both 1 amp 23 none of these
sivaleeba10 Asked: June 2023 which is an almost pure form of carbon1 coke2 coal tar3 coal gas 4 none of these
sivaleeba10 Asked: June 2023 which of the following form of carbon is used to make lead pencils1 graphite2 charcoal3 diamond4 all of these
sivaleeba10 Asked: June 2023 which alloy do engineers prefer to use while constructing a multistory building why
sivaleeba10 Asked: June 2023 the materials which gets decomposed through natural processes by the action of bacteria are called