Chemistry MCQs

A. 1
B. 2
C. 3
D. 4

A. Electrons fill orbitals with parallel spins until all the orbitals of the same energy are half filled then they go into sub-shells with anti-parallel (opposite) spin.
B. The electrons in the same atom cannot have the same four quantum numbers
C. There is maximum of two electrons is an orbital.
D. None

A. Teflon
B. asbestos
C. saran
D. acrylic

A. copper
B. ice
C. diamond
D. graphite

A. Be+2H2O?Be (OH)2+H2
B. Be+H2O?Be (OH)2+H2
C. Be+H2O?[Be (OH)4]+2+H2
D. no reaction

A. VSEPR
B. VBT
C. MOT
D. none of the above

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

A. 1 x 10-1
B. 1 x 10-14
C. 1 x 10-7
D. 1

A. 1.008 x 10-3
B. 5.5 x 10-4
C. 1.84 x 10-4
D. 1.673 x 10-3

A. constitutive property
B. additive property
C. colligative property
D. intrinsic property