Which one of the following is the petroleum wax?
1 Bees wax
2 Carnauba wax
3 Paraffin wax
4 Jojoba wax
Which of the following is used as a moderation in nuclear reactor? 1 Ordinary water 2 Radium 3 Thorium 4 Graphite
Liquefied Petroleum Gas consists of mainly 1 Methane, ethane and hexane 2 Ethane, hexane and noname 3 Methane, butane and propane 4 Methane, hexane and nonane
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What is one light hour?
Detergents used for cleaning clothes and utensils contain 1 Nitrates 2 Bicarbonates 3 Sulphonates 4 Bismutnates
Which is the largest refractor telescope?
Which of the following substances exhibit the property of sublimation? 1 Ice 2 Wax 3 Camphor 4 Ethyl alcohol
Carbon tetrachloride fire extinguisher should not be used in closed rooms, because it produces a poisonous gas called 1 Carbon monoxide 2 Phosphine 3 Phosgene 4 None of these
The location and energy of an electron in an atom can be specified by 1 Atomic mass 2 Atomic number 3 Quantum numbers 4 None of these
What is the capacity of arihant’s atomic reactor?
Water gas is prepared by passing 1 Steam over white-hot coke 2 Air over red-hot coke 3 Methane over red-hot coke 4 Steam over heated sulphur
In which year, physical laboratory in ahmedabad was founded?