Question
Why does water boil at lower temperatures on
hills?Solution
On higher altitudes such as hills, the atmospheric pressure is lower compared to sea level. This reduced pressure decreases the boiling point of water, causing it to boil at temperatures lower than 100°C, unlike at sea level where it boils at exactly 100°C.
In the periodic table of elements, what happens to the atomic radius as you move from left to right across a period?
Haematite ores is the ore of which metal?
_____ is used for making chemical apparatus like beakers, flasks, etc.
Which of the following statement is/are true?
I. Metal oxides are acidic in nature
II. Non-metallic oxides are basic in nature
Which of the following vitamins is called a water-soluble vitamin?
Air coolers are more suitable for –
A radioactive substance emits?
Match the following columns and choose the correct option:
Column I A. Leishmania donovani B. Trypanosoma gambiense C. Entamoeba histolytica D. W...
_____ are a group of chemicals that influence cell division and shoot formation.
Which among the following form of coal contains the highest percentage of carbon content?