How many moles are there is 140 g Si (atomic mass of silicon is 28) ?

1.
How many moles are there is 140 g Si (atomic mass of silicon is 28) ?

A. 5

B. 10

C. 28

D. 140

Answer» B. 10

Discussion

No Comment Found

Related MCQs

Name the scientist who stated that matter can be converted into energy .

Air is

Which one is the pure element

The isotopes of chlorine with mass number 35 and 37 exist in the ratio of

The father of modern chemistry is

The total number of electrons present in 18ml of water (density of water is 1g/ml)

Which one of the following laws explain the formation of carbon monoxide and carbon dioxide from carbon and oxygen ?

'Misch metal' is widely used in manufacture of which of the following

Which one is the compound in the following ?

Diamond is

1.	How many moles are there is 140 g Si (atomic mass of silicon is 28) ?
A.	5
B.	10
C.	28
D.	140
Answer» B. 10

How many moles are there is 140 g Si (atomic mass of silicon is 28) ?

Discussion

No Comment Found

Related MCQs

Reply to Comment