Which is sold as fertilizer ___________________?
Which is sold as fertilizer ___________________?
A. CaSiO3
B. Na2SiO3
C. Ca3(PO4)2
D. MnSiO3
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The purpose of Smelting an ore is to________?
The purpose of Smelting an ore is to________?A. Reduce it
B. Oxidize it
C. Obtain an alloy
D. Separate volatile impuritiesMain use of salt in diet is to : ___________?
Main use of salt in diet is to : ___________?A. ease the process of cooking
B. increase the taste
C. produce small amount of hydrochloric acid required for digestion
D. inclease solubility of food particles in waterReplacement of hydrogen of benzene by alkyl group in the presence of alkyl halide & aluminum chloride is known as__________________?
Replacement of hydrogen of benzene by alkyl group in the presence of alkyl halide & aluminum chloride is known as__________________?A. Dows process
B. Friedel & Craft acylation
C. Friedel & Craft alkylation
D. Clemmenson reductionWhen the central atom of coordination compound is sp3d2 hybridization the expected geometry will be___________________?
When the central atom of coordination compound is sp3d2 hybridization the expected geometry will be___________________?A. tetrahedral
B. square planar
C. trigonal bipyramidal
D. octahedralVinylacetylene combines with HCI to form___________________?
Vinylacetylene combines with HCI to form___________________?A. polyacetylene
B. benzene
C. chloroprene
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Water gas heated at 450?C and 200 atm pressure in the presence of ZnO+Cr2O3 will produce________________?A. methanol
B. methanol
C. carbonic acid
D. methane