Class 10 | SCIENCE Quiz - 1 | Chemical Reactions & Equations

The neutralization reaction between an acid and a base is a type of:

• Decomposition reaction

• Double displacement reaction

• An isomerization reaction

Before burning in air, the magnesium ribbon is cleaned by rubbing with a sand paper to:

• Remove the layer of magnesium carbonate from the ribbon surface

• Remove the layer of magnesium oxide from the ribbon surface

• Make the ribbon surface shinier

Which of the following gases is used in the storage of fat and oil containing foods for a long time?

• Oxygen gas

• Nitrogen gas

• Chlorine

• Barium sulphate

In a chemical reaction between sulphuric acid and barium chloride solution, the white precipitates formed are of:

• Magnesium ribbon

• Copper granules

• Sodium pellets

• Hydrochloric acid

Which of the following processes does not involve a chemical reaction?

• Ripening of banana

• Burning of candle wax when heated

• Digestion of food in our stomach

• Distillation of water

Combination of phosphorus and oxygen is an example of:

• Rancidity

• Burning of candle wax when heated

• Hydrolysis

• Decomposition reaction as well as displacement reaction

The given diagram of experimental set-up is used to carry out:

• Combination reaction as well as double displacement reaction

• Redox reaction as well as displacement reaction

• Decomposition reaction as well as displacement reaction

• Double displacement reaction as well as redox reaction

The given chemical reaction represents:

• Hydrolysis

• Electrolysis of water

• Reduction as well as combination reactions

• Oxidation as well as displacement reactions

All the methods mentioned below can be used to prevent the food from getting rancid except:

• Storing the food in the air-tight containers

• Storing the food in refrigerator

• Keeping the food in clean and covered containers

• Always touching the food with clean hands

A substance which oxidizes itself and reduces others is known as:

• Reducing agent

• None of these

• Conservation of momentum

• Conservation of motion