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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 Submitted by :- Jamil Ahmed
A catalyst can not effect__________________?
A. Products B. Chemical equilibrium C. Reactants D. both A & B Submitted by :- Jamil Ahmed
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 Submitted by :- Jamil Ahmed
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