………….. A bond in magnesium oxide is
Covalent bond
Metallic bond
Pole bond
Ionic bond
Which is the correct symbol of Oxygen ion (8O)
+O
O+2
-O
O-2
……………. All the following are solid metals except
aluminum
mercury
iron
sodium
Which of the following is correct about the bond between Chlorine molecule (17Cl)
Triple covalent bond
Single covalent bond
Double covalent bond
………………. A bond that gives compounds or elements is
………………. Elements that have luster
All previous answers
Metals
Nobel gases
Non-metals
……………. A bond between negative and positive ions is
………… An atom that gained an electron or more during chemical reaction is called
Negative ion
Positive ion
None of the previous
Normal atom
………………………… Elements are classified into
Metals , non-metals and nobel gases
Non- metals only
Metals and non-metals
Metals only
metals have……………..in the outermost level.
Less than 4 electrons
Exactly 4 electrons
8 electrons
More than 4 electrons
? Which of the following is correct about non-metals
Non-metals have no luster
Metals lose electrons
All non-metal are solids
All non-metals are good conductors of electricity
………….. A bond in Hydrochloric acid (HCl) is
An atom that never loses or gains an electron or more during chemical reaction is called……………..
Metal
Nobel
Ion
Non-metal
……………… Elements lose electrons during chemical reaction are
are elements neither lose nor gain electrons during chemical reaction …………