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Question 1 of 20 0% read

1. The amount of product formed depends on:

A Excess reactant
B Limiting reactant
C Temperature only
D Pressure only

2. Mole ratio is obtained from which part of a chemical equation?

A Products only
B Reactants only
C Balanced coefficients
D Chemical symbols

3. Dilution decreases:

A Moles of solute
B Volume of solution
C Concentration of solution
D Mass of solute

4. Which polymer is used to make plastic bottles?

A PET
B PVC
C Nylon
D Teflon

5. Which organic compound contains both carbon and hydrogen only?

A Alcohol
B Ester
C Hydrocarbon
D Carboxylic acid

6. Alcohols are used in pharmaceutical industry to make:

A Fuels only
B Medicines and syrups
C Fertilizers
D Explosives

7. Who proposed the first modern atomic theory?

A Jabir ibn Hayyan
B John Dalton
C Robert Boyle
D Lavoisier

8. Percentage yield can be greater than 100% if:

A Reaction is incomplete
B Product is impure
C Limiting reactant is less
D No side reactions occur

9. In electrolysis of aqueous NaCl, hydrogen is released at:

A Anode
B Cathode
C Salt bridge
D Electrolyte

10. Which salt is prepared by neutralization reaction?

A Sodium chloride
B Calcium carbonate
C Sodium sulfate
D All of these

11. Esters are formed by reaction between carboxylic acid and:

A Alkane
B Alkene
C Alcohol
D Aldehyde

12. Industrial application of esters mainly depends on their:

A Acidic nature
B Pleasant odor
C Basic nature
D High density

13. Which organic compound contains -COOH group?

A Alcohol
B Ester
C Carboxylic acid
D Alkane

14. Which sector regulates alcohol use for safety?

A Public health sector
B Mining sector
C Textile sector
D Forestry sector

15. Which of the following indicates saturation?

A Presence of double bond
B Presence of triple bond
C No decolorization of bromine water
D Positive Baeyer's test

16. Molarity decreases when:

A Solute is added
B Solvent is removed
C Solution is diluted
D Temperature is lowered

17. Strength of a solution is defined as:

A Moles per liter
B Grams per liter
C Liters per mole
D Moles per gram

18. Which polymer is used in making raincoats?

A Nylon
B PVC
C Polystyrene
D Teflon

19. Which graph shows effect of catalyst?

A Higher activation energy
B Lower activation energy
C Same activation energy
D No energy change

20. Which compound gives effervescence with sodium bicarbonate?

A Alcohol
B Aldehyde
C Carboxylic acid
D Ester

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