Advertisements
Advertisements
प्रश्न
Ammonia is found in many household products, such as window cleaners. It turns red litmus blue. What is its nature?
उत्तर
Ammonia is basic in nature as it turns the colour of red litmus paper to blue.
APPEARS IN
संबंधित प्रश्न
What is meant by strong acids and weak acids? Classify the following into strong acids and weak acids:
HCI, CH3 COOH, H2 SO 4, HNO3, H2 CO3 , H2 SO3
A white shirt has a yellow stain of curry. When soap is rubbed on this shirt during washing, the yellow stain turns reddish-brown. On rinsing the shirt with plenty of water, the reddish-brown stain turns yellow again.
Explain the changes in colour of this indicator which take place during washing and rinsing the shirt.
One of the following is a medicine for indigestion. This is:
(a) sodium hydroxide
(b) manganese hydroxide
(c) magnesium hydroxide
(d) potassium hydroxide
Write balanced equation to satisfy the following statement:
\[\ce{Acid + Base -> Salt + water}\]
Classify the following solutions as acids, bases or salts.
Ammonium hydroxide, barium chloride, sodium chloride, sodium hydroxide, H2SO4 and HNO3
The preparation of Lead sulphate from Lead carbonate is a two-step process. (Lead sulphate cannot be prepared by adding dilute Sulphuric acid to Lead carbonate.)
Write the equation for the reaction that will take place when this first step is carried out.
The correct way of making a solution of acid in water is to
Turmeric is a natural indicator. On adding its paste to acid and base separately, which colours would be observed
Citric acid is present in ______.
Write the important uses of hydrochloric acid and sulphuric acids.