A. 6
B. 12
C. 18
D. 20
Related Mcqs:
- In primary alkyl halides the halogen atom is attached to a carbon which is further attached to how many carbon atoms__________________?
A. two
B. three
C. one
D. four - The carbon atom of carbonyl group is__________________?
A. sp hybridized
B. sp2 hybridized
C. cp3 hybridized
D. dsp2 hybridized - The valency of carbon Atom is __________ ?
A. 1
B. 2
C. 3
D. 4Submitted by: Rashid Mehmood
- The radioactive isotope of hydrogen is called___________?
A. tritium
B. deuterium
C. protium
D. ortho-hydrogenSubmitted by: Ayesha zameer
- The properties of an element mosly corresponds to that isotope which has greater_________________?
A. Mass number
B. Atomic mass
C. Relative abundance
D. all of the above - Which one is true about isotope ?
A. Same number of neutrons
B. Same mass number
C. Same physical properties
D. Same chemical properties - Which of the following is the Radioactive isotope of Hydrogen?
A. Protium
B. Deuterium
C. Tritium
D. NichromiumSubmitted by: Aamir khan Hullio
- The carbon-carbon bond strength is maximum in__________?
A. CH3CH3
B. CH2=CH2
C. Benzene
D. CyclohexaneSubmitted by: Muhammad Ali Kunbhar
- All of the following were theorized by Bohr in his description of the atom except__________________?
A. Angular momentum of electrons in multiples of h/2?
B. Electrons revolve in discrete circular orbits
C. Energy of each electron is directly proportional to n2
D. Electrons radiate energy continuously in a given orbit. - Centrifugal forces are balanced in atom by__________________?
A. Attractive forces
B. Repulsive force
C. Electrons
D. Neutrons