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प्रश्न
State one observation for each of the following :
A small piece of zinc is added to dilute hydrochloric acid
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उत्तर
Bubbles of H2 gas observed.
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संबंधित प्रश्न
Name the source from which litmus solution is obtained. What is the use of this solution?
Name one natural source of the following acid:
Oxalic acid
State some of the uses of mineral acids in industry.
What is produced if an acid is added to a base?
Most of the acids are not soluble in water.
Paheli is suffering from indigestion due to acidity. Is it advisable to give her orange juice in this situation and why?
Match the substances in Column I with those in Column II.
| Column 1 | Column II | ||
| (a) | Tartaric acid | (i) | soap |
| (b) | Calcium hydroxide | (ii) | curd |
| (c) | Formic acid | (iii) | unripe mangoes |
| (d) | Sodium hydroxide | (iv) | ant’s sting |
| (e) | Lactic acid | (v) | lime water |
When an acidic solution is mixed with a basic solution, they ______ each other forming ______ and water.
You are provided with four test tubes containing sugar solution, baking soda solution, tamarind solution, salt solution. Write down an activity to find the nature (acidic/basic/neutral) of each solution.
Complete the following equation.
HCl + ______ → NaCl + H2O
