📚NCERT Questions — CBSE10
499 solved questions with detailed explanations
Which product of the chlor-alkali process is used as a fuel, in margarine, and for ammonia synthesis?
What is an alloy called if one of the metals is mercury?
A solution reacts with crushed egg-shells to give a gas that turns lime-water milky. The solution contains:
What is the green coating formed on copper articles when exposed to moist carbon dioxide in the air?
Which substances are selectively re-absorbed from the initial filtrate as urine flows along the kidney tubule?
What is the common name for ethanol?
The Iron Pillar near Qutub Minar in Delhi is renowned for its exceptional rust resistance. Which of the following is the most likely reason for this property?
Write the balanced equation for dilute hydrochloric acid reacting with magnesium ribbon.
Which of the following metals is found in the Earth's crust mainly as oxides, sulphides, or carbonates?
What is an alloy?