One of the following is not an organic acid. This is :
Acetic acid
Formic acid
Citric acid
Carbonic acid
Which of the following does not cause acid rain
Sulphur dioxide
Carbon monoxide
Carbon dioxide
Nitrogen dioxide
When a basic solution is added to an indicator, a green colour is produced. The indicator should be
Red litmus indicator
China rose indicator
Phenolphthalein indicator
Turmeric paper indicator
Which indicator will produce a pink colour on adding a few drops of sodium hydroxide solution
Blue litmus
Phenolphthalein
Turmeric paper
When an ant stings a person, it causes a burning pain. which of the following should be rubbed on the stung area of skin to get relief
Lemon juice
Baking soda solution
Vinegar solution
Formic acid solution
Which of the following is a mineral acid
Hydrochloric acid
Oxalic acid
Which of the following contains lactic acid
Ant's sting
Unripe grapes
Lemons
Sour milk
A certain solution does not change the colour of any indicator. This solution is most likely to be
Common salt solution
Washing soda solution
The dilute solution of which of the following are not harmful to drink
Magnesium hydroxide
Potassium carbonate
Sodium hydrogencarbonate
Sodium carbonate
The acid produced naturally in our stomach is :
Sulphuric acid
