Advertisements
Advertisements
प्रश्न
______ is not made of matter.
पर्याय
Gold ring
Iron nail
Light ray
Oil drop
Advertisements
उत्तर
Light ray is not made of matter.
APPEARS IN
संबंधित प्रश्न
Select the correct alternative
The molecules can move freely anywhere in
- gases
- liquids
- solids
- none of the above
State any two properties for believing that aluminium is a metal.
The property/properties which enable copper metal to be used for making electric wires is/are :
How much water should be mixed with 12 mL of alcohol so as to obtain 12 % alcohol solution ?
How will you differentiate between a suspension and a colloid ?
What will happen if a saturated solution is :
- heated
- cooled
State whether the following statement are true or false :
Salt and water can be recovered from an aqueous salt solution by the process of evaporation.
How will you separate a mixture of iron filings and powdered carbon ?
The liquid air has three components X, Y and Z whose boiling points are : –186°C, –183°C and –196°C,
respectively. When liquid air is fed into a tall fractional distillation column from near its bottom and warmed
up slowly :
(a) Which component will be collected from near the bottom of the fraction distillation column ? Why ?
(b) Which component will be collected from the top part of the fractional distillation column ? Why ?
(c) Which component will be collected from the middle part of the fractional distillation column ? Why ?
(d) What could the component X, Y and Z be ?
There are three liquids A, B and C, all having different densities and different boiling points. Liquids A and C are organic in nature whereas liquid B is considered to be inorganic. When liquids A and B are put together in a container, they form a single layer. On the other hand, when, liquids B and C are mixed, they form two separate layers :
(a) Which process will you use to separate a mixture of A and B ?
(b) Which method will you use to separate a mixture of B and C ?
(c) Name the liquids which would behave like (i) A (ii) B and (iii) C.
