Question Text
Question 5 :
The average boiling point of aviation turbine fuel is closest to that of:
Question 6 :
Which of the following is a recently originated problem of environment?
Question 11 :
Eventhough a cinema hall is a place prone to fire hazards, the interiors are mostly made of wood or wood based panels. Why is this so ?
Question 12 :
Assertion: No further heating is needed when sulphur reacts with metals.
Reason: Reaction of sulphur with metals is exothermic.
Question 16 :
Sulphur reacts with hot aqueous potassium hydroxide, KOH to form :
Question 18 :
On addition of which metal, copper sulphate solution (blue colour) will be changed to colourless solution?
Question 19 :
$100\ g$ of a metal carbonate is heated which completely dissociated and forms $22.4\ L$ of $CO_{2}$ at STP. The metal carbonate is?
Question 20 :
When metallic copper comes in contact with moisture, a green powdery / pasty coating can be seen over it. This is chemically known as