Which of the following is false for gases?
- AThey diffuse easily
- BThey have mass
- ✓They do not mix well
- DThey are highly compressible
Answer: C.
View full solution →85 questions across 8 question groups — pick any mix to generate a Science paper with step-by-step answer keys.
M C Q
16 Q→02Fill in the blank with correct answer.[1 Mark each]
15 Q→03true or false.[1 Mark each]
5 Q→04[1 Mark Questions]
23 Q→05[2 Mark Questions]
13 Q→06Match The Following.
4 Q→07[4 Mark Questions]
8 Q→08[7 marks Questions]
1 Q→One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
Answer: C.
View full solution →Answer: A.
View full solution →Answer: C.
View full solution →Answer: B.
View full solution →Answer: C.
View full solution →| i | Silica | (a) | Caustic potash |
| ii | Potassium hydroxide | (b) | Sand |
| iii | Sodium hydroxide | (c) | Calamine |
| iv | Zinc carbonate | (d) | Caustic soda |
| i | Softest metal | (a) | Copper |
| ii | Hardest metal | (b) | Sodium |
| iii | Hardest non – metal | (c) | Osmium |
| iv | Ductility | (d) | Diamond |
| Atom | Building block of matter |
| Element | Atoms of different kinds |
| Compound | Atoms of the same kind |
| Molecule | Smallest unit of a substance |
| Iron | For making wires |
| Copper | Sewing needle |
| Tungsten | As a fuel for ignition in rocket |
| Boron | Making the filament of a bulb |
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