Related Questions

Photo-chemical reactions occur in presence of
A Sunlight
B Darkness
C Solid catalysts
D Monochromatic radiation only
Which of the following is not the properties of an ionic compound?
A Soluble in water and insoluble in petrol
B High melting and boiling points
C Low melting and boiling points
D Solid and hard
The molecule which has the highest percentage of ionic character among the following is
A HI
B HF
C HCI
D HBr
Addition polymerisation takes place either by a free radical mechanism or ionic machanism depending on the reagents used. Free radical polymerisation is catelyzed by __________ , which decompose to give free radicals.
A Organic peroxides
B Sulphuric acid
C Hydroflouric acid
D None of these
Mark the compound which possess ionic, covalent and coordinate bonds.
A NH4Cl
B SO3
C SO2
D H2O
The unit of ionic product of water (Kw) is :
A Mol2 let-1
B Mol2 let-2
C Mol-1 let-2
D Mol-1 let-1
Losses which occur in rotating electric machines and do not occur in trans formers are
A friction and windage losses
B magnetic losses
C hysteresis and eddy current losses
D copper losses
The "sum of all" chemical reactions in "an organism's" living cells "are" called "its" metabolism."No Error"
A sum of all
B an organism's
C are
D its
The "sum of all" chemical reactions in "an organism's " living cells "are" called "its" metabolism. "No Error".
A sum of all
B are
C its
D No Error
কোন যৌগটিতে একের অধিক ধরনের সংকরিত কার্বন আছে?(Which of the following reactions has concentration time plot different from others?)
A Cyclohexane
B Benzene
C Toluene
D n-butane

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