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Mustard gas is obtained by the reaction of S2Cl2 with : Ethane , Ethene, Ethyane , Methane
Peroxyaceryl nitrate (PAN) is an irritant to human being and it affects : eyes, Ears, Stomach , None Of These
Cannizzaros reaction is not given by : Formaldehyde, Acetaldehyde, Benzaldehyde, Trimethyl acetaldehyde
Which one of the following does not belong to alkaline earth metals : Be, Ra, Ba, Rn
Pentane(c5h12) shows how many chain isomers : 2, 3, 4, 5
Which one of the following is not a nucleophile : H2O, H2S, BF3, NH3
Tincal is a mineral of : Al, Boron, Silicon, carbon
The word paper is derived from the name of which reedy plant : Rose, Sun Flower, Papyrus, Water hyacinth
The reaction between fat and NaOh is called : Esterification, Hydrogenolysis, Fermentation , Saponification
Among group VA element the most electronegative is : Sb, N, P, As
Which of the following noble gas is used in bactericidual lamps : Propinoic acid, Acetic acid, Phthalic acid, Butanoic acid
Which one of the following noble gas is used in bactericidal lamps : Ne, Ar, Kr, Xe
Which compound is called a universal solvent : H2O, CH3OH, C2H5OH, CH3-O-CH3
How many element are present in 5th Period of periodic table : 32, 8, 18, 28
How many resonce structures of benzene are known : 3, 4, 5, 6
Which of the following reagent will react with both aldehydes and ketones : Grignards reagents, Tollens reagent, Fehling reagent, Benedicts reagent
Percentage of carbon in steel is : 0.25 - 2.5 %, 0.12 -0.20 %, 3.0 to 4.5 %, 2.0 -4.5 %
Ester Amylacetate has flavour of : Raspberry, Apricot, Orange, Banana
Ortho phosphoric acid has melting point : 49 °C, 45°C, 41°C, 50°C
The optimum PH of salivery amylase is : 5.4 - 6.9, 5.4 - 7.9, 6.4 - 6.9, 6.4 - 7.4
Beta -beta - dichlorethyl sulphide is commonly known as : Laughing gas , Phosgene gas, Mustard gas , Bio gas
Percentage of Nitrogen in Urea l is : 0.76, 0.56, 0.46, 0.86
Mild steel contains carbon : 0.1 - 0.2 %, 0.2 - 0.7 %, 0.2 - 0.6 %, 0.1 - 0.6 %
Cement contains gypsum : 0.03, 0.02, 0.002, 0.003
The compound used in the processing of anti polio vaccine is : Acetaldehyde, da, formaldehyde, Ethyl bromide
Aldehydes and ketones react with 2 4 dinitrophenyl hydrazine Solution to give precipitate of the colour : Yellow or red, Orange or red, White or red, Black or red
Resonance energy of benzene is : 150.5 Kj/mole, 140.5 Kj/mole, 155 Kj/mole, 145 Kj/mole
Dolomite is : CaCO3, MgCO3.CACO3, MgCO3, Na2CO3
Vital force theory was rejected by : G.N.Lewis, F.wholer, Greek philosophers, Scientists of 20th centuries
Xenon Has kinds of oxides : 2, 3, 4, 1
SN reaction are given by : Primary alkyl halides, Secondary alkyl halides, Tertiary alkyl halides, Secondary alcohols
How many times the newspaper can be recycled: 3, 4, 5, 2
Element of the periodic tables are classification into blocks : 4, 3, 5, 6