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90103151. The cathode of a lead storage battery is made up of
A
ZincB
LeadC
Lead oxideD
Manganese dioxideCorrect Answer: B. Lead
90189152. Which of these acids is not organic in origin?
A
Lactic acidB
Sulphuric acidC
Citric acidD
Oxalic acidCorrect Answer: B. Sulphuric acid
90080153. Preparation of 'Dalda or Vanaspati' ghee from vegetable oil utilizes the following process :
A
HydrolysisB
OxidationC
hydrogenationD
OzonolyslsCorrect Answer: C. hydrogenation
90033154. Detergents are
A
Sodium salts of fatty acidsB
Sodium salts of sulphonic acidsC
Sodium salt of benzoic acidD
None of the aboveCorrect Answer: B. Sodium salts of sulphonic acids
90198155. Which one of the following minerals are found in Monazite sand?
A
PotassiumB
UraniumC
ThoriumD
SodiumCorrect Answer: C. Thorium
90142156. The Refrigerant 'FREON' is
A
Calcium Tetra FluorideB
Difluoro Dichloro MethaneC
Fluorspar and FelsparD
Hydrofluosilicic AcidCorrect Answer: B. Difluoro Dichloro Methane
90172157. Which of the following contains high content of lead?
A
CoalB
Cooking gasC
High octane fuelD
Low octane fuelCorrect Answer: C. High octane fuel
90091158. Solder is an alloy of
A
lead, zincB
copper, leadC
tin, leadD
sodium, leadCorrect Answer: C. tin, lead
90133159. The noble gas used in radiotherapy is
A
neonB
argonC
radonD
xenonCorrect Answer: C. radon
90049160. Glycol is added to aviation gasoline because it
A
reduces evaporation of petrolB
increases the efficiency of petrolC
prevents freezing of petrolD
reduces the consumption of petrolCorrect Answer: C. prevents freezing of petrol
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