End name of enzyme is___________________?
A. yl B. ase C. one D. al
Chemistry MCQs
For determining the order of reaction we use__________________?
A. Refractometric method B. Dilatometric method C. Optical activity method D. Half life method
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
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)
Which of the following will not form crystalline structure with opporitely charged ions_________________?
A. H+ B. H- C. Mg2+ D. Ca2+
Periodic table provides a basic framework to study elements with respect to their__________________?
A. Physical properties B. Chemical properties C. Properties of their compounds D. All
Concept of Triads was introduced by_______________?
A. Dobereiner B. Newland C. Mendeleev D. Al-Razi
Elements with similar chemical properties appear in the_________________?
A. Same family B. Same period C. p block elements D. Right upper corner
In modern periodic table all the leements are arranged in ascending order of__________________?
A. Valency B. Atomic mass C. Atomic number D. Valence electrons
Inner transition elements are called _________________?
A. Lanthanides B. Actinides C. Rare earth metals D. All