Classification Of Elements, Chemical Bonding, Periodicity In Properties & Physical Transformation - Category Wise Question And Answer Practice Test With Solutions

Question : 6

The early attempt to classify elements as metals and nonmetals was made by

a) Lother Meyer

b) Lavoisier

c) Mendeleev

d) Henry Moseley

Answer »

Question : 7 [PSC (Pre) 2017]

Example of corrosion is

a) Green coating on Copper

b) Brown coating on Iron

c) Black coating on Silver

d) Above three

Answer »

Question : 8

Which among the following atoms has high atomic radi?

a) Rb

b) K

c) Na

d) Cs

Answer »

Question : 9

The scientist who made maximum contribution towards periodic table was

a) Rutherford

b) Dalton

c) Chadwick

d) Mendeleev

Answer »

Question : 10

According to Newland’s law of octaves, which element is the repetition of the first element in the periodic table?

a) Nitrogen

b) Chlorine

c) Oxygen

d) Sulphur

Answer »