EVERYDAY SCIENCE

SCIENCE

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is not a compound?
A
HCl
B
Cl
C
NaCl
D
CO2
Explanation: 

Detailed explanation-1: -Chlorine gas, Iron, Aluminium, Iodine, Carbon, Sulphur powder are not compounds.

Detailed explanation-2: -chlorine (Cl), chemical element, the second lightest member of the halogen elements, or Group 17 (Group VIIa) of the periodic table. Chlorine is a toxic, corrosive, greenish yellow gas that is irritating to the eyes and to the respiratory system.

Detailed explanation-3: -Chlorine, also known as CL2, belongs to the class of inorganic compounds known as homogeneous halogens. These are inorganic non-metallic compounds in which the largest atom is a nobel gas.

Detailed explanation-4: -Hence, the correct option is A i.e. Ozone is not a compound.

Detailed explanation-5: -The term chloride refers either to a chloride ion ( Cl −), which is negatively charged chlorine atom, or a non-charged chlorine atom covalently bonded to the rest of the molecule by a single bond ( −Cl). Many inorganic chlorides are salts. Many organic compounds are chlorides.

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