The volume strength of 1.5 N H2O2 solution is_______?
The volume strength of 1.5 N H2O2 solution is_______?
A. 4.8
B. 5.2
C. 8.8
D. 8.4
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The number of lone pairs in XeOF4 is_________?
The number of lone pairs in XeOF4 is_________?A. O
B. 1
C. 2
D. 3The valency of carbon Atom is __________ ?
The valency of carbon Atom is __________ ?A. 1
B. 2
C. 3
D. 4
The valency of carbon is 4. As the atomic number of carbon is 6, it has a total of 6 electrons in one atom arranged in the following configuration. it needs to add 4 more electrons to the 2p sub-shell, or lose 4 electrons from the 2s and 2p sub-shells.The 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 octaneRaney nickel is prepared from ______________________ by treating with caustic soda?
Raney nickel is prepared from ______________________ by treating with caustic soda?A. Ni-Cu alloy
B. Ni-Fe alloy
C. Ni-Al alloy
D. Ni-Mg alloyWhich of the following is a symmetrical ketone___________________?
Which of the following is a symmetrical ketone___________________?A. 3 – hexanone
B. acetone
C. butanone
D. 2-pentanoneAtoms of all the elements always contain in nucleus:
Atoms of all the elements always contain in nucleus:A. Proton and neutron
B. Neutron and electron
C. Proton
D. Neutron