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Class 10 · Science · Easy
→Which substance is commonly used as an antacid to neutralise excess acid in the stomach?
Class 10 · Science · Easy
→A student takes an antacid to relieve acidity. What type of reaction does an antacid mainly undergo with excess hydrochloric acid present in the stomach?
Class 10 · Science · Easy
→A student places blue litmus paper in an acidic solution and finds that it turns red. If the student gradually adds sodium hydroxide to the solution, what will be the colour of litmus near the neutralisation point?
Class 10 · Science · Easy
→Which substances are formed in a neutralisation reaction?
Class 10 · Science · Easy
→What is generally formed when an acid reacts with a base?
Class 10 · Science · Easy
→Which of the following substances gives a basic solution when dissolved in water?
Class 10 · Science · Easy
→Which gas is released when an acid reacts with a metal carbonate?
Class 10 · Science · Easy
→Which of the following substances acts as an indicator by changing colour in the presence of acids and bases?
Class 10 · Science · Easy
→Which substance should a student add to acidic soil to raise its pH?
Class 10 · Science · Easy
→Which of the following substances is an example of a neutral salt?
Class 10 · Science · Easy
→Which acid is mainly present in tomato?
Class 10 · Science · Easy
→Which acid is present in curd?
Class 10 · Science · Easy
→A student says that lemon juice should be taken to reduce stomach acidity because it is sour. What is the correct correction to this statement?
Class 10 · Science · Easy
→Which main acid is present in lemon juice?
Class 10 · Science · Easy
→A substance that feels soapy and slippery is generally of which type?
Class 10 · Science · Easy
→A substance with a sour taste is generally of which type?
Class 10 · Science · Easy
→Bases change red litmus paper into which colour?
Class 10 · Science · Easy
→Acids change blue litmus paper into which colour?
Class 10 · Science · Medium
→A clean iron nail is placed in blue copper sulphate solution. A reddish-brown coating forms and the solution turns light green. Which conclusion is correct?
Class 10 · Science · Medium
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