Which of the p-block elements are not representative elements ?
A. Alkali metals (I-A)
B. Group-14 elements (IV-A)
C. Group-18 elements (VIII-A)
D. Halogens (VII-A)
Submitted by :- Jamil Ahmed
Elements in the same vertical group of the periodic table have same_______________?
A. Number of valence electrons
B. Atomic number
C. Atomic mass
D. Atomic volume
Submitted by :- Jamil Ahmed
For determining the order of reaction we use__________________?
A. Refractometric method
B. Dilatometric method
C. Optical activity method
D. Half life method
Submitted by :- Jamil Ahmed
End name of enzyme is___________________?
A. yl
B. ase
C. one
D. al
Submitted by :- Jamil Ahmed
Co-enzymes are_________________?
A. Non proteineous
B. Proteineous
C. sugars
D. lipids
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A catalyst can not effect__________________?
A. Products
B. Chemical equilibrium
C. Reactants
D. both A & B
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Each catalyst has_________________?
A. Specificity
B. Special structure
C. Its own Ea
D. all of above
Submitted by :- Jamil Ahmed
Which of the following ion is stable in aqueous solution ?
A. H+
B. H-
C. Cl-
D. All are stable
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An element has electronic configuration 1s2 2s2 2p2. It belongs to__________________?
a. Group II-A
B. Group IV-A
C. Group VII-A
D. Group VI-A
Submitted by :- Jamil Ahmed
The atomic radii decrease by increasing atomic number in________________?
a. Alkali metal
B. Alkaline earth metal
C. Elements from Li to Ne
D. Halogens
Submitted by :- Jamil Ahmed