ECAT Pre Engineering Chemistry Chapter 12 MCQ Test With Answer

ECAT Chemistry Chapter 12 Periodic Classification of Elements and Periodicity

Sr. #	Questions	Answers Choice
1	Element with higher oxidation state form oxides:	Acidic Basic Ampholetic Peroxides
2	the element not known till Mandleev tabulated his periodic table:	Carbon Hydrogen Aluminum Germanium
3	Newland's gave law:	Triad's law Octaves law Period law Moderen periodic law
4	Modern Periodic table is based upon periodic function:	Atomic mass Mass number Nuclide Number Atomic number
5	Mark the correct statement:	All lanthanides are present in the same period. all halogens are present in he same period. All the alkali metals are present in the same group. All the noble gases are present in the same period.