Question
State few properties of acids.
✓
Answer
- Acids are sour in taste.
- The chemical nature of such substances is acidic.
- Acid turns blue litmus red.
- It gives hydrogen ion when dissolves in water.
- Do not give any colour with phenolphthalein indicator.
- Do not absorb carbon dioxide gas.
- Acids do not react with ammonium salt.
- Acids are generally found in Vinegar, Curd, Spinach, lemons, Citrus fruits, Amla, Tamarind, grapes, unripe mangoes, Citrus fruits such as oranges, etc.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Draw a labelled diagram of the human excretory system.
Boojho’s uncle was hospitalised and put on dialysis after a severe infection in both of his kidneys.
- What is dialysis?
- When does it become necessary to take such a treatment?
Group the seeds given in Figure $(i)$ to $(iii)$ according to their means of dispersion.
→- Seed dispersed by wind.
- Seed dispersed by water.
- Seed dispersed by animal.
Explain the position and role of the Sun, Moon, and Earth in a solar and a lunar eclipse.
How polar bear is adopted in the polar climatic condition.
How does weathering lead to the formation of soil? Explain the physical and chemical changes involved.
Match items in Column I with those in Column II:
| Column I | Column II |
| Bud | Maple |
| Eyes | Spirogyra |
| Fragmentation | Yeast |
| Wings | Bread mould |
| Spores | Potato |
| Rose |
Match items in Column $I$ with those in Column $II:$
→| Column I | Column II | ||
| $(a)$ | Bud. | $(i)$ | Maple. |
| $(b)$ | Eyes. | $(ii)$ | Spirogyra. |
| $(c)$ | Fragmentation. | $(iii)$ | Yeast. |
| $(d)$ | Wings. | $(iv)$ | Bread mould. |
| $(e)$ | Spores. | $(v)$ | Potato. |
| $(vi)$ | Rose. |
What is regular and irregular reflection?
What happens to the food inside the body?