ECAT Pre Engineering Chemistry Chapter 1 MCQ Test With Answer

ECAT Chemistry Chapter 1 Basic Concepts

Sr. #	Questions	Answers Choice
1	Benzene is stable to:	Oxidation Nitration KMnO<sub>4</sub> SULPHONATION
2	Formation of a cation is:	Exothermic process Non-endothermic process Endothermic process None of above
3	An ion bearing positive charge is called:	Cation Positron Anion None of above
4	A species having positive or negative charge is called:	Electron Ion Proton Atom
5	Which statement about molecule is incorrect ?	Molecules of a substance are similar Hemoglobin is a homo atomic molecules Oxygen molecule is a macro molecule It exist independently
6	Which statement about an atom is true ?	The number of neutrons is not equal to number of electrons Mass number is less than atomic number All the elements have only one mass number Mass number can be equal to atomic number
7	In molecules kinetic and potential energies are:	Definite Moderate Indefinite None of above
8	Molecules of High molecular weight usually greater than 10,000 are called:	Macro molecules Mega molecules Poly molecules Gega molecules
9	Hemoglobin contains nearly:	10,000 atoms 100 atoms 1000 atoms 1 atom
10	Hemoglobin is 68000 times heavier than:	Oxygen atom Nitrogen atom Carbon atom Hydrogen atom