Related Questions

DDT and BHC may act as
A Allergens
B Carcinogens
C Asthematic agents
D None of these
BHC (Benzene hexachloride) is made by the chlorination of benzene
A Which is an addition reaction
B Which is a substitution reaction
C In absolute dark
D In presence of sunlight
Which of the following is not an insecticide?
A Hydrocyanic acid
B Nicotine
C Sodium flouride
D Hexane
Dichloro diphenyl __________ is the full form of DDT (an insecticide).
A Tetrachloroethane
B Trichloroethane
C Tetrachloromethane
D Trichloromethane
Hydrocynic acid (HCN) is used as an insecticide for
A Controlling timber degradation by ants
B Controlling poultry lice
C Potato beetle
D Citrus fruits
Chemical potential (an intensive property) of a substance is a force that drives the chemical system to equilibrium and is equal to its partial molar properties. The reatio of chemical potential to free energy of a pure substance at oconstant temperature and pressure is
A 0
B 1
C ∞
D None of these
Which of the following is a chemical formula of quicklime?
A Ca2O
B Ca2CO3
C CaO2
D CaO
Which one of the following is the chemical formula of gypsum?
A $$CaS{O_4} \cdot 2{H_2}O$$
B Ca2SiO4
C $$2CaS{O_4} \cdot {H_2}O$$
D CaSO4
Which one of the following is the chemical formula of Washing Soda?
A NaHCO3
B $$N{a_2}C{O_3} \cdot 10{H_2}O$$
C $$N{a_2}C{O_3} \cdot 5{H_2}O$$
D NaOH
What is the chemical formula of bleaching powder?
A Ca (OCl)2
B Ca (OCl)
C Ca (OCl)3
D CaCl2

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