Chemical Reactions and Equations

Which one of the following is true about the reaction taking place in photosynthesis process?
1. It is an endothermic reaction.
2. It is an exothermic reaction.
3. This reaction does not consume or release energy.
4. None
Which one of the following reactions is correctly balanced?
1. 2H2+O2→2H2O
2. 2H2+O2→H2O
3. 2H2+3O2→2H2O
4. None
Which of the following type of reaction is taking place in the chemical equation given below?
8Fe+S8→8FeS
1. Combustion
2. Combination
3. Decomposition
4. Displacement
Which of the following type of reaction is taking place in the chemical equation given below?
1. Combustion
2. Combination
3. Decomposition
4. Double displacement
Oxidation of fats and oils is called
1. Corrosion
2. Rusting
3. Photosynthesis
4. Rancidity
The equation given below depicts which type of chemical reaction?
A + BC → AC + B
1. Combustion
2. Combination
3. Decomposition
4. Displacement
The destruction of a material containing metals due to chemical reactions with its surroundings is called:
1. Rancidity
2. Osmosis
3. Corrosion
4. None
Below four chemical equations are given. Identify the correct type of reaction for the given chemical equations.
1. A - decomposition, B - combination, C - redox, D - displacement.
2. A - displacement, B - combination, C - redox, D - decomposition.
3. A - redox, B - combination, C - displacement, D - decomposition.
4. A - displacement, B - combination, C - decomposition, D - redox.
Which one of the following statements is correct?
1. Addition of any electronegative atom in a chemical reaction is called oxidation.
2. Addition of hydrogen is called oxidation.
3. A substance which causes removal of oxygen from substances is called oxidizing agent.
4. All the above
Which one of the following is incorrect?
1. Rancidity can be prevented by adding anti-oxidants to foods containing fats and oils.
2. Rancidity can be prevented by packing fat and oil containing foods in oxygen gas
3. Rancidity can be retarded by keeping food in a refrigerator.
4. None of these
'X' is an equation which contains equal number of atoms of each element on both the sides. What is 'X'?
1. A balanced equation
2. A unbalanced equation
3. A chemical equation
4. All of the above
In the given equation, what does 'X' stand for?
1. 2
2. 3
3. 1
4. 5
In which reaction is a substance decomposed by using electricity?
1. Electrolysis
2. Hydrolysis
3. Decomposition
4. Displacement
In which reaction is an atom or a group of atoms present in a molecule displaced by another atom?
1. Displacement reaction
2. Double Displacement reaction
3. Decomposition reaction
4. Synthesis reaction
In which reaction do two compounds exchange their ions to form two new compounds?
1. Displacement reaction
2. Double displacement reaction
3. Synthesis reaction
4. Decomposition reaction
In which reaction does a solid get separated from the solution?
1. Neutralization reaction
2. Precipitation reaction
3. Redox reaction
4. All of the above
Which of the given reactions is an odd one?
1. Carbon+Oxygen→Carbon dioxide
2. Hydrogen+Chlorine→Hydrogen chloride
3. Glucose→Carbon dioxide+Water
4. Sulphur+Oxygen→Sulphurdioxide
How is the decomposition of silver chloride carried out?
1. By electricity
2. By Sunlight
3. By heat
4. by water
Which metal can prevent the corrosion of tin?
1. Zn
2. Cu
3. Pb
4. Ag

Chemical Reactions and Equations

Quiz