Subject :NSO Class : Class 8
Subject :NSO Class : Class 8
Read the following passage and fill in the blanks by selecting an appropriate option. Match sticks are made of suitable wood. These wooden sticks have a mixture of __(i)__ and __(ii)__. The rubbing surface, present on the match box has __(iii)__ and a little __(iv)__.
| (i) | (ii) | (iii) | (iv) | |
| A | White phosphorus |
Potassium chlorate |
Powdered glass |
Antimony trisulphide |
| B | Antimony trisulphide |
Potassium chlorate |
Powdered glass |
Red phosphorus |
| C | Potassium chlorate |
Antimony trisulphide |
White phosphorus |
Red phosphorus |
| D | Red phosphorus |
Antimony trisulphide |
Powdered glass |
Potassium chlorate |
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Subject :NSO Class : Class 8
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Subject :NSO Class : Class 8
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