Chemistry Questions for SSC CGL EXAM

Dear  Readers,

We are providing the alternate quizzes on Chemistry/Biology/Physics. From this section you will get at least 7-8 questions in SSC CGL Exam. So from this quiz one can prepare general science section on daily basis.



Q1. A process of very slow regulated cooling is known as—
(a) Quenching 
(b) Sedimentation 
(c) Annealing 
(d) Diffusion 



Q2. Alkali metals belong to which block? 
(a) s-block 
(b) p-block 
(c) d-block 
(d) f-block 

Q3. Corrosion of a metal occurs at the— 
(a) Anode 
(b) Cathode 
(c) Both anode and cathode 
(d) None of the above 

Q4. The difference between isotopes of an element is due to the presence of a different number of—
(a) Protons 
(b) Neutrons 
(c) Electrons 
(d) Photons 

Q5. Which of the following does not belong to the halogen family? 
(a) Chlorine 
(b) Fluorine 
(c) Bromine 
(d) Morphine 

Q6. The carbon-carbon bond length is shortest in—
(a) Ethane 
(b) Ethylene 
(c) Benzene  
(d) Acetylene 

Q7. What is the commercial name for calcium hydride? 
(a) Lime 
(b) Hydrolith 
(c) Slaked lime 
(d) Calgon 

Q8. Which of the molecular formula of phosphorus? 
(a) P1
(b) P2
(c) P3
(d) P4

Q9. A catalyst—
(a) Alters the velocity of a reaction 
(b) no change in the velocity of a reaction 
(c) Decreases the velocity of a reaction 
(d) Starts a reaction 

Q10. Which of the following cannot be purified by sublimation? 
(a) Iodine 
(b) Camphor 
(c) Citric acid 
(d) Naphthalene 

Q11. Oils and fats are obtained from—
(a) Animal sources 
(b) Vegetable sources 
(c) Synthesis 
(d) Both animal and vegetable sources 

Q12. A dark purple compound used as an antiseptic and disinfectant is—
(a) Potassium nitrate 
(b) Sodium thiosulphate 
(c) Potassium permanganate 
(d) Calcium phosphate 

Q13. Which of the following is widely used an anaesthetic? 
(a) Methane 
(b) Ammonia  
(c) Chlorine 
(d) Chloroform 

Q14. Permanent hardness of water is due to the presence of—
(a) Calcium bicarbonate 
(b) Magnesium bicarbonate 
(c) Calcium sulphate 
(d) Sodium bicarbonate 

Q15. Which of the following is the most commonly used bleaching agent?
(a) Alcohol 
(b) Carbon dioxide 
(c) Chlorine 
(d) Sodium chloride 


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