A. AB3
B. A2B3
C. A2B
D. AB2
Related Mcqs:
- A compound was found having nitrogen and oxygen in the ratio 28 gm and 80 gm respectively. The formula of the compound is_________________?
A. N2O4
B. N2O5
C. N2O3
D. None of these - If 1.5 moles of oxygen combines with aluminium to form Al2O3, then the weight of aluminium (atomic weight = 27) used in this reaction is __________ gm?
A. 27
B. 54
C. 5.4
D. 2.7 - Referring to the periodic table of elements, it is found that with increasing atomic number. The atomic size in the same___________________?
A. Period increases
B. Period decreases
C. Group increases
D. Both ‘B’ & ‘C’ - The heat capacity of a solid compound is calculated from the atomic heat capacities of its constituent elements with the help of the___________________?
A. Trouton’s rule
B. Kopp’s rule
C. Antoine equation
D. Kistyakowsky equation - 6 gms of magnesium (atomic weight = 24), reacts with excess of an acid, the amount of H2 produced will be ______________ gm?
A. 0.5
B. 1
C. 3
D. 5 - The atomic weight of helium is 4 times that of hydrogen. Its diffusion rate as compared to hydrogen will be _____________ times?
A. 1/2
B. 4
C. √2
D. 1/4 - Atomic ______________ of an element is a whole number?
A. Weight
B. Number
C. Volume
D. Radius - In the reaction, Ca + 2H2O = Ca(OH)2 + H2; what volume (c.c.) of hydrogen at STP would be liberated, when 8 gm of calcium reacts with excess water ? (Atomic weight of calcium = 40) ?
A. 4480
B. 2240
C. 1120
D. 0.4 - The amount of Zn (atomic weight = 65) required to form 224 c.c. of H2 at N.T.P. on treatment with dilute H2SO4will be _____________ gm?
A. 0.065
B. 0.65
C. 6.5
D. 65 - Heat requirement for decomposition of a compound into its elements is _____________ that is evolved during the formation of that compound from its elements?
A. The same
B. Less than
C. Greater than
D. Different than
