Subject :NSO Class : Class 2
Subject :NSO Class : Class 5
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Subject :NSO Class : Class 6
Read the following statements and select the option that correctly identifies true
(T) and false (F) ones.
(i) The number of petals and sepals in a flower is always equal.
(ii) Roots absorb water and minerals from the soil.
(iii) Stamens form the female reproductive part of a flower.
(iv) Petiole is the short stalk that attaches leaf to the stem.
(v) Calyx and corolla form the essential whorls of the flower.
| (i) | (ii) | (iii) | (iv) | (v) | |
|---|---|---|---|---|---|
| A | T | T | F | T | F |
| B | F | T | F | T | F |
| C | F | T | T | T | F |
| D | T | T | F | F | T |
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Subject :NSO Class : Class 6
Depending upon the nature of the
constituents present in a mixture, Suhana, a class 6 student suggested some methods of separation as shown in the table.
| S. No. |
Types of mixture |
Methods of separation |
|---|---|---|
| 1. | Solid - Solid | Handpicking, Sieving |
| 2. | Solid - Liquid (insoluble) |
Sedimentation - Decantation, Filtration |
| 3. | Liquid - Liquid (immiscible) |
Decantation, Separating funnel |
| 4. | Solid - Liquid (soluble) |
Filtration, Decantation |
| 5. | Liquid - Liquid (miscible) |
Distillation |
Which of these is/are incorrect method(s) of separation?
A1 and 2 only
B3 only
C1 and 5 only
D4 only
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Subject :NSO Class : Class 2
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Subject :NSO Class : Class 6
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Subject :NSO Class : Class 9
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Subject :NSO Class : Class 2
