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Class 10 · Science · Easy
→Which of the following salts is associated with a fixed number of water molecules and is called a hydrated salt?
Class 10 · Science · Easy
→A student adds sodium hydroxide solution to an acidic solution to increase its pH. Which statement is correct during this process?
Class 10 · Science · Easy
→Why does blue copper sulphate become white on heating?
Class 10 · Science · Easy
→What effect does dry hydrogen chloride gas have on dry blue litmus paper?
Class 10 · Science · Easy
→A student says that an antacid increases acidity in the stomach. What is the correct correction to this statement?
Class 10 · Science · Easy
→Plaster of Paris is made by heating which salt?
Class 10 · Science · Easy
→What is a major use of bleaching powder?
Class 10 · Science · Easy
→A student adds dilute hydrochloric acid to a white powder and passes the evolved gas through lime water. The lime water turns milky. Which ion is most likely present in the powder?
Class 10 · Science · Easy
→A farmer finds that the soil is acidic, resulting in poor crop growth. Which substance should be added to reduce the acidity of the soil?
Class 10 · Science · Easy
→A student uses toothpaste to reduce the effect of acid on teeth. Which property of toothpaste causes this effect?
Class 10 · Science · Easy
→Why does applying baking soda on an ant sting give relief?
Class 10 · Science · Easy
→A student takes an antacid to get relief from acidity. What is the main function of an antacid?
Class 10 · Science · Easy
→Why is toothpaste mildly basic?
Class 10 · Science · Easy
→Below which pH can tooth decay start more easily?
Class 10 · Science · Easy
→Milk of magnesia is what type of substance?
Class 10 · Science · Easy
→Antacid is used for which problem?
Class 10 · Science · Easy
→Which substance should a farmer add to acidic soil to increase its pH?
Class 10 · Science · Easy
→Which of the following is most suitable for applying as a dilute paste to reduce the burning sensation caused by an ant sting?
Class 10 · Science · Easy
→Which of the following substances provides hydroxide ions (OH−) when dissolved in water?
Class 10 · Science · Easy
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