Advertisements
Advertisements
प्रश्न
Dil. HCl is added to Zn granules. How will you prove that chemical change has taken place here? Support your response with two arguments.
Advertisements
उत्तर
Response with any of the given two arguments.
- Bubbles of gas/Evolution of gas.
- Change in colour (Zn - silvery grey to black).
- Change in temperature.
APPEARS IN
संबंधित प्रश्न
Find the odd man out:
Turmeric, Methyl Orange, Rose petals, Beetroot.
Write a complete balanced equation for the following reaction:
\[\ce{Calcium (solid) + Water (liquid) -> Calcium hydroxide (solution) + Hydrogen (gas)}\]
When potassium nitrate is heated, it decomposes into potassium nitrite and oxygen. Write a balanced equation for this reaction and add the state symbols of the reactants and products.
The chemical reaction between quicklime and water is characterised by ______.
The chemical equations are balanced to satisfy one of the following laws in chemical reactions. This law is known as ______.
Balance the following chemical equation :
Na20 + H20 → NaOH
What is thermit process?
Write a balanced equation for the following word equation:
Potassium nitrate → Potassium nitrite + Oxygen
Fill in the blank with the correct word from the options given below:
A chemical equation is a shorthand form for a _______ change.
When aqueous solutions of potassium iodide and lead nitrate are mixed an insoluble substance separates out. The chemical equation for the reaction involved is:
