Cassiterite is an ore of_______?
Cassiterite is an ore of_______?
A. Mn
B. Ni
C. Sb
D. Sn
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When one hydrogen atom of alkane is removed then it is called________________?
When one hydrogen atom of alkane is removed then it is called________________?A. alkene
B. alkyl
C. aldehyde
D. saturated hydrocarbonThe octane number of zero is assigned to____________?
The octane number of zero is assigned to____________?A. 2-methyl octane
B. n-heptane
C. iso-octane
D. 3-methyl octaneBy the addition of base in waterpH will be_______________?
By the addition of base in waterpH will be_______________?A. more than 7
B. less than 7
C. equal to 7
D. no effectWhen benzene is substituted by halogens only which one of the following halogens only which one of the following halogens is given the number one position in the ring while writing the name of compound ?
When benzene is substituted by halogens only which one of the following halogens only which one of the following halogens is given the number one position in the ring while writing the name of compound ?A. Bromine
B. Chlorine
C. Fluorine
D. IodineElimination bimolecular reactions involve____________________________?
Elimination bimolecular reactions involve____________________________?A. first order kinetics
B. second order kinetics
C. third order kinetics
D. zero order kineticsWhich one of the following results in the discovery of proton.
Which one of the following results in the discovery of proton.A. Cathode rays
B. Canal rays
C. X-rays
D. Alpha rays