Target SSC CGL | 10,000+ Questions | Chemistry Questions For SSC CGL : Day 9

Dear aspirants,

This is the new year with new goals, new experiences and lots of exams to be scheduled soon. SSC CGL has recently released the exam dates so now it is time to gear up your preparations and try hard to get the success. ADDA247 never fails to deliver something new and fruitful for you all. This time also we are providing you the best study plan as well as a study material. We are here going to prepare your General Science section for the SSC CGL. In this article, we are providing you the details that how we are going to help you to clear the examination this year. We ADDA247 is going to provide you daily tests for all the subjects. The topic-wise quiz will be done from January till April. This will help you to get a deeper knowledge of all the topics and will prepare you thoroughly.

Q1. In chemistry,. Soap is a Salt of a ?
(a) Fatty acid.
(b) Glycol.
(c) Phosphorous.
(d) Ammonium carbonate.

Q2. Radioactive elements emit?
(a) Radiwaves.
(b) infrared waves.
(c) ultraviolet waves.
(d) alpha , beta , and gamma radiations.

Q3. Glucose is a type of?
(a) pentose Sugar.
(b) Hexose sugar.
(c) Tetrose sugar.
(d) Diose Sugar.

Q4. _ is a by-product of sewage treatment and can be decomposed to produce bio-gas?
(a) sewage.
(b) sludge.
(C) sewer.
(d) scum.

Q5. Which one of the following non-metals shows allotropy in the liquid state?
(a) carbon.
(b) sulphur.
(C) phosphorus.
(d) Bromine.

Q6. Rn is a chemical symbol of which element?
(a) Radium.
(b) Radon.
(c) Rhenium.
(d) Ruthenium.

Q7. Which of the following is not a chemical change?
(a) Burning of paper.
(b) Digestion of food.
(c) conversion of water into steam.
(d) Burning of coal.

Q8. Which chemical is used to ripe mangoes artificially?
(a) sulphur dioxide.
(b) Nitrous oxide.
(c) calcium carbide.
(d) Phosphorus.

Q9. Which of the following gas is coloured?
(a) Oxygen.
(b) Nitrogen.
(c) chlorine.
(d) Hydrogen.

Q10. Which of the following is not a commercial source of energy?
(a) Coal.
(b) Petroleum.
(C) Natural gas.
(d) Firewood.

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S1. (a)
Sol.
Saponification is a process that produces soap. In chemistry, soaps are sodium or potassium salts of higher fatty acids like stearic acid, palmitic acid , oleic acid etc.

S2. (d)
Sol.
Radioactive elements emit alpha beta and gamma radiations.
Emission of gamma radiation takes place after emission of alpha and beta radiations.

S3. (b)
Sol.
Glucose is a type of Hexose sugar.

S4. (b)
Sol.
Sewage treatment involves three stages.
Sludge is a semi-solid residue produced in first step during treatment of sewage and waste water.

S5. (b)
Sol.
A colloidal sol of sulphur is obtained by bubbling H2s had through the solution of bromine water,. Sulphur dioxide etc.

S6.(b)
Sol.
Radium=Ra.
Radon=Rn.
Rhenium=Rh.
Ruthenium=Ru.

S7. (c)
Sol.
Conversion of water into steam is a physical change. Because, it is a physical change and it is a reversible process.
So, Water can be obtained again from the steam.

S8. (c)
Sol.
Calcium carbide is used to ripe mangoes artificially.
Calcium carbide produce acetylene gas which acts as the natural ripening agent.

S9. (c)
Sol.
Oxygen, nitrogen , and hydrogen are colourless gases.while, chlorine is a greenish yellow coloured gas.

S10. (d)
Sol.
Firewood is not a commercial source of energy.

In the last month i.e. in May daily we will provide you with a test of the previous years’ question papers, this will increase your confidence of solving the real exam and will make you familiar with the real-time exam.

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