Question Text
Question 1 :
Is it TRUE OR FALSE, Coal can be drawn into wires?
Question 3 :
The metal which produces hydrogen gas on reaction with dilute hydrochloric acid as well as sodium hydroxide solution is
Question 5 :
Phosphorus is a very reactive non-metal. It catches fire if exposed to air, to prevent the contact of phosphorus with atmospheric oxygen, it is stored in _______
Question 8 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d081f59b460d7261f306.PNG' />
From the image above, find out the names of three non metals
Question 9 :
Metals react with acids and produce hydrogen gas that burns with a ‘pop’ sound?
Question 11 :
Litmus indicator solution turns red in acidic solutions and blue in alkaline solutions?
Question 14 :
What happens when dilute sulphuric acid is poured on a copper plate?
Question 16 :
The property of metals producing a ringing sound when struck is called?
Question 19 :
The substance that will be flattened on beating with a hammer is
Question 22 :
Saloni took a piece of burning charcoal and collected the gas evolved in a test tube. Find the nature of the gas.
Question 23 :
What happens when Iron nails are placed in copper sulphate solution?
Question 25 :
A less reactive metal replaces a more reactive metal from its salt solution in water. True or False
Question 27 :
A metal which reacts with acid as well as base to form hydrogen gas.
Question 29 :
Complete the reaction, $ Magnesium (Mg) + Oxygen (O_2 ) → $ ?