MEDIUM
7th ICSE
IMPORTANT
Earn 100

Give reason - Potassium reacts vigorously with cold water while copper does not react with water or steam.

Important Questions on Metals & Non-Metals

MEDIUM
7th ICSE
IMPORTANT
Give a reason - Rusting reduces the structural strength of iron.
MEDIUM
7th ICSE
IMPORTANT
Give a reason - A suspension of rust is basic in nature.
MEDIUM
7th ICSE
IMPORTANT
Give a reason - Galvanized steel is not used for articles used for edible applications.
MEDIUM
7th ICSE
IMPORTANT
Name the metal used in packaging.
MEDIUM
7th ICSE
IMPORTANT
Name the chemical compound responsible for the green deposit on the surface of articles of copper.
EASY
7th ICSE
IMPORTANT
Name a metal used in flexible pipes. (Zinc/ Lead)
MEDIUM
7th ICSE
IMPORTANT
Name the halogen which is a solid at room temperature. [Fluorine / Iodine]
MEDIUM
7th ICSE
IMPORTANT

Match the correct answer from A, B, C, D & E for statement given below.

A: Boron B: Chlorine C: Potassium D: Platinum E: Radon

The element placed in the extreme left of the Modern Periodic Table.