RRB Group D 23-Oct-2018 Shift 3 Solved Paper

Question : 1 of 100

Marks: +1, -0

Which of the following statements is/are true?
A. Out of 124 elements, 22 are non-metals, and other are metals.
B. Every oreis a mineral but every mineral is not an ore

$A$ and $B$ are both true
Only B is true
Only A is true
$A$ and $B$ are both false

Validate

Solution:

Out of 124 elements, 22 are non metals and other are metals, this statement is false as there are 108 elements

, 84

metals, 17 non metal and 7 metalloids in Periodic Table.

Go to Question:

Next Question