A. Pauli exclusion principle
B. Hund’s rule
C. Aufbau’s principle
D. Le-Chatelier’s principle
Submitted by: Durdana
Related Mcqs:
- The scientist who did not contribute in the construction of periodic table ?
A. Al-Razi
B. Moseley
C. Dobereiner
D. Democritus - 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. Iodine - Which of the following is not characteristics of reversible reaction__________________?
A. whole amount of reactant does not change into product
B. chemical equilibrium is established
C. a catalyst changes the direction of reaction
D. rate of forward reaction decreases as reaction proceeds - Which of the following elements react with steam to produce H2 gas?
A. Pd
B. Ni
C. Sn
D. All of the above - Which one of the following is not a periodic property ?
A. Melting point of elements
B. Boiling point of elements
C. Ionization energy of elements
D. Coordination number of ions - Which of the following will have the highest boiling point ?
A. methanol
B. ethanal
C. propanal
D. hexanone - Which one of the following statement is not correct about benzene ?
A. On hydrogenation 208 KJ/mole is liberated
B. C-H bond length in benzene is 1.09 A?
C. Molecular mass of benzene is 78.108
D. Resonance energy of benzene is 150.5 K Cal/mole - The most electronegative element among the following is_________________?
A. Sb
B. N
C. As
D. P - Which of the following represents the correct electronic configuration of VII A group elements in the ground state ?
A. ns2p2
B. ns2p4
C. ns2p5
D. ns2p6 - Which one of the following is the correct sequence according to atomic weights?
A. Fe>Co> Ni
B. Co > Ni > Fe
C. Ni> Co> Fe
D. Co >Fe>NiSubmitted by: Muhammad Ali Kunbhar
