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Online Solved MCQs With Answers IGCSE
Q.1: The location of transition elements is in between--------- ?
- lanthanides AND actinides
- s and p block elements
- chalcogens and halogens
- d and f block elements
B
Q.2: The species which donate two electron pairs in a coordination compound is called--------- ?
- ligand
- mono-dentate ligand
- poly-dentate ligand
- bi-dentate ligand
D
Q.3: The leements in which d or f orbitals are in the process of completion are------- ?
- outer transition elements
- inner transition elements
- typical transition elements
- transition elements
D
Q.4: Which of the following is not primary pollutant---------- ?
- SO3
- CO
- NO
- H2SO4
D
Q.5: Ozone hole is substantial depletion of ozone in every year during--------- ?
- Aug – Nov
- Sep – Nov
- Nov – Dec
- Dec – Jan
B
Q.6: The reduction potential Zn is------- ?
- 0.76
- -0.76
- -0.55
- 0.55
B
Q.7: Solution with maximum concentration of solute at given temperature is called--------- ?
- Super saturated solution
- unsaturated solution
- saturated solution
- dilute solution
C
Q.8: Mixtures which distill over without change in composition called---------- ?
- zeotropic mixture
- azeotropic mixture
- amphoteric mixture
- ideal solution
B
Q.9: The compounds in which water molecules are added are called-------- ?
- Hydrated ions
- double salts
- hydrates
- complexes
C
Q.10: Density of H2SO4 in lead accumulator is--------- ?
- 1.25g/cm3
- 1.3g/cm3
- 1.20g/cm3
- 1.15g/cm3
A
Q.11: Which of the following unit of concentration is independent of temperature ?
- Molarity
- Molality
- Mole fraction
- all
B
Q.12: Every sample of matter with uniform properties and fixed composition is called---------- ?
- solute
- solvent
- solution
- phase
D
Q.13: Chemical used in salt bridge is-------- ?
- KOH
- KCI
- KNO3
- KBr
B
Q.14: The solution which distils over with change in composition---------- ?
- ideal solution
- zeotropic solution
- azeotropic solution
- non-ideal solution
B
Q.15: Zn(s)/Zn+2(aq) 1M | | Cu+2(aq) 1M/Cu(s) is representation of reaction in----------- ?
- Daniel cell
- Downs cell
- Voltaic cell
- Nelsons cell
C
Q.16: Beckmanns apparatus is used to measure---------- ?
- boiling point elevation
- depression in freezing point
- lowering of vapour pressure
- lowering of osmotic pressure
B
Q.17: The half cells are interconnected through-------- ?
- wire
- salt bridge
- electric circuit
- no connection exists
B
Q.18: The compound or complex ion which has a ring in its structure--------- ?
- polydentate ligand
- chelate
- monodentate ligand
- hydrate
B
Q.19: If electricity is passed through CuSO4 solution by using Pt electrode then which of the following possible change occurs ?
- H2 is deposited at cathode
- Colour of the solution becomes fade
- Cu is deposited at anode
- All are possible
B
Q.20: Pure metal---------- ?
- corrode slowly
- corrode rapidly
- does not corrode easily
- none of these
C
