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Science (Chemistry) Quiz For CTET 2017

Science (Chemistry) Quiz For CTET 2017_30.1

Q1. A pure substance can only be-

(a) compound
(b) an element
(c) an element or a compound
(d) a heterogeneous mixture

Q2. The most abundant metal in earth crust is-
(a) iron
(b) magnesium
(c) calcium
(d) aluminum

Q3. An alloy is-  
(a) a compound
(b) an allotropic form
(c) an isomer
(d) a mixture

Q4. Sodium carbonate crystals lose water molecules. This property is called-  
(a) hygroscopy
(b) deliquescence
(c) efflorescence
(d) none of these

Q5. 1 amu is equal to-  
(a) 1.00758 g
(b) 0.000549 g
(c) 1.66 × g
(d) g

Q6. Antimony is-  
(a) metal
(b) non metal
(c) metalloid  
(d) none of these

Q7. Which one of the following is not a mixture compound –
(a) air
(b) milk
(c) mercury
(d) cement

Q8. The M.K.S system was first introduced by-
(a) Archimedes
(b) Einstein
(c) Newton
(d) Giorgi

Q9. Bar is unit of-  
(a) pressure
(b) force
(c) energy
(d) frequency

Q10. ‘Misch metal’ is widely used in manufacture of which of the following-  
(a) material of car brake
(b) smoke detectors
(c) cigarette lighters
(d) emergency lights

S1. Ans.(c)

S2. Ans.(d)

S3. Ans.(d)

S4. Ans.(c)

S5. Ans.(c)

S6. Ans.(c)

S7. Ans.(c)

S8. Ans.(d)

S9. Ans.(a)

S10. Ans.(c)