SSC MTS EXAM

SSC

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Mole
A
floating or sinking when compared to water
B
conditions of 0.00
C
A reaction that ABSORBS energy in the form of heat
D
the SI base unit used to measure the amount of a substance
Explanation: 

Detailed explanation-1: -One mole (mol) contains exactly 6.02214076 × 1023 elementary entities. This number is the fixed numerical value of the Avogadro constant, NA, when expressed in the unit mol−1 and is called the Avogadro number. The amount of substance, symbol n, of a system is a measure of the number of specified elementary entities.

Detailed explanation-2: -Length-meter (m) Time-second (s) Amount of substance-mole (mole) Electric current-ampere (A)

There is 1 question to complete.