Subject :NSO Class : Class 7
Subject :NSO Class : Class 7
Refer to the given figures and answer the question that follows.
What are the main functions of X, Y and Z?
| X | Y | Z | |
| A | Supports the plant |
Transports food |
Gaseous exchange |
| B | Transports water and minerals |
Transports food |
Release water vapour |
| C | Transports water and minerals |
Supports the plant |
Take in CO2 |
| D | Transports food | Transports water and minerals |
Gaseous exchange |
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Subject :NSO Class : Class 7
Post Your Answer
Subject :NSO Class : Class 7
Observe the given figure carefully.
Read the given passage and fill in the blanks by selecting an appropriate option. In the given figure, __(i)__ reaction takes place which is a chemical change. __(ii)__ being more reactive than __(iii)__ produces gas 'X' which is __(iv)__ and it burns with a __(v)__ .
| (i) | (ii) | (iii) | (iv) | (v) | |
|---|---|---|---|---|---|
| A | Oxidation | Zn | H | SO2 | dazzling light |
| B | Displacement | H | Zn | H2 | pop sound |
| C | Displacement | Zn | H | H2 | pop sound |
| D | Reduction | Zn | S | SO2 | rotten egg smell |
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Subject :NSO Class : Class 7
Post Your Answer
Subject :NSO Class : Class 7
Post Your Answer
Subject :NSO Class : Class 7
Post Your Answer
Subject :NSO Class : Class 7
Match column I with column II and select the correct option from the given codes.
| Column I (Salts) |
Column II (Uses) |
||
|---|---|---|---|
| P. | Baking soda | (i) | In making fire-works |
| Q. | Nitre | (ii) | As a fungicide |
| R. | Blue vitriol | (iii) | In purification of water |
| S. | Phitkari | (iv) | In fire extinguishers |
AP-(iii), Q-(ii), R-(iv), S-(i)
BP-(iv), Q-(iii), R-(i), S-(ii)
CP-(iv), Q-(i), R-(ii), S-(iii)
DP-(ii), Q-(i), R-(iv), S-(iii)
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Subject :NSO Class : Class 7
