Write the balanced equation for the following chemical reactions.
1. Hydrogen + Chlorine → Hydrogen chloride
2. Barium chloride + Aluminium sulphate → Barium sulphate + Aluminium chloride
3. Sodium + Water → Sodium hydroxide + Hydrogen
1. Hydrogen + Chlorine → Hydrogen chloride
H2 + Cl2 → 2HCl
2. Barium chloride + Aluminium sulphate → Barium sulphate + Aluminium chloride
3BaCl2 + Al2(SO4)3 → 3BaSO4 + 2AlCl3
3. Sodium + Water → Sodium hydroxide + Hydrogen
2Na + 2H2O → 2NaOH + H2
Match the words of Column (A) with that of Column (B)
| Column (A) | Column (B) |
|---|---|
|
(a) Phloem |
(i) Excretion |
Find out, from Table 10.3, the medium having highest optical density. Also find the medium with lowest optical density.
| Material medium |
Refractive index |
Material medium |
Refractive index |
| Air | 1.0003 | Canada Balsam |
1.53 |
| Ice | 1.31 | ||
| Water | 1.33 | Rock salt | 1.54 |
| Alcohol | 1.36 | ||
| Kerosene | 1.44 | Carbon disulphide |
1.63 |
| Fused quartz |
1.46 | ||
| Turpentine oil |
1.47 | Ruby | 1.71 |
| Benzene | 1.50 | Sapphire | 1.77 |
| Crown glass |
1.52 | Diamond | 2.42 |
Table 10.3 Absolute refractive index of some material media
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Welcome to the NCERT Solutions for Class 10 Science - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 2: Write the balanced equation for the following chemical reactions. 1. Hydrogen + Chlor....
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