Advertisements
Advertisements
प्रश्न
Choose the most appropriate answer
A pair of metalloids are
पर्याय
Na and Mg
B and Si
C and P
He and A
Advertisements
उत्तर
B and Si
APPEARS IN
संबंधित प्रश्न
Choose the most appropriate answer
Which of the following property is not shown by compounds?
What is centrifugation ? Also write the principle on which it works.
Name the following:
The heavier liquid component from mercury and water.
Name the following:
The lower boiling point component from methyl alcohol and water.
State any one method – to separate the following mixtures – A solid-liquid mixture containing – a soluble solids in the liquid component
Very Short Answer Type Question:
What types of material can we separate by using handpicking?
Is it possible to separate sugar mixed with wheat flour? If yes, how will you do it?
What are the steps involved in the separation of sand, salt, and water?
Paheli asked for a glass of water from Boojho. He gave her a glass of ice cold water. Paheli observed some water droplets on the outer surface of the glass and asked Boojho how these droplets of water were formed. Which of the following should be Boojho’s answer?
Match the mixtures in column I with their method of separation in column II.
| COLUMN I | COLUMN II | ||
| (a) | Oil mixed in water | (i) | Sieving |
| (b) | Iron powder mixed with flour | (ii) | Hand picking |
| (c) | Salt mixed with water | (iii) | Decantation |
| (d) | Lady’s finger mixed with french beans | (iv) | Magnet |
| (e) | Rice flour mixed with kidney beans | (v) | Evaporation |
