8881 + Interview Questions in Chemistry in Class 10

1.	______ is usedforwhitewashing walls .
Answer» SOLUTION :SLAKEDLIME

Discussion

2.	......... is used in black and white photography.
Answer» SOLUTION :AGBR or AGCL

Discussion

3.	__________ is used for dental filling .
Answer» SOLUTION :SILVER TIN AMALGAM

Discussion

4.	_______ is thesmallestparticleof anelementor compound .
Answer» SOLUTION : MOLECULE

Discussion

5.	_________ is the scienceof extractingmetalsfrom oresand modifyigmetals into alloys.
Answer» SOLUTION :METALLURGY

Discussion

6.	…………….. Is the process of reducing the roasted metallic oxide to metal
Answer» SOLUTION : SMELTING

Discussion

7.	___________ is the process of purification of metal.
Answer» SOLUTION :REFINING

Discussion

8.	__________ is the periodicproperty which is used to predictthe nature of bonding between atoms in a molecule.
Answer» SOLUTION :ELECTRONEGATIVITY

Discussion

9.	Aluminium is the most abundant metal in the earth's crust.
Answer» ANSWER :ALUMINIUM

Discussion

10.	__________ is the minimum energy requiredto removean electron from a gaseousatom in its ground stateto form a cations.
Answer» SOLUTION :IONISATION ENERGY

Discussion

11.	_________ is the metal widely used for anodizing .
Answer» SOLUTION :ALUMINIUM

Discussion

12.	………………….. Is the main principle behind in Hydraulic method .
Answer» SOLUTION : SPECIFIC GRAVITY

Discussion

13.	________ is the longestperiod in the periodical table.
Answer» SOLUTION :`6^(TH)`

Discussion

14.	………….. Is the longest period in the periodical table.
Answer» SOLUTION :SIXTH PERIOD

Discussion

15.	________ is the gradual destruction of metals by chemicalor electrochemicalreaction with the environment .
Answer» SOLUTION :CORROSION

Discussion

16.	______ is the first member of the homologous series of alkynes.
Answer» SOLUTION :ETHYNE (or ACETYLENE )

Discussion

17.	.............. is the example of gas in liquid.
Answer» SOLUTION :CARBON DIOXIDE DISSOLVED in WATER

Discussion

18.	_____ is the common name of sodium hydroxide.
Answer» SOLUTION :CAUSTIC SODA

Discussion

19.	_____ is the best conductor of electricity.
Answer» ANSWER :SILVER

Discussion

20.	_______ is silvery white metal.
Answer» SOLUTION :ALUMINIUM

Discussion

21.	_________is in liquid state at room temperature.
Answer» FLUORINE CHLORINE BROMINE IODINE SOLUTION :Bromine

Discussion

22.	________ is foundin Madurai and Dindugal.
Answer» SOLUTION :TUNGSTEN

Discussion

23.	………………. Is defined as the slow and steady destruction of a metal by the environment
Answer» SOLUTION : CORROSION

Discussion

24.	…………………. Is an ore of a aluminium and ……………..Is its mineral .
Answer» SOLUTION :BAUXITE , CLAY

Discussion

25.	………………. Is an important metal to form amalgam.
Answer» AG Hg Mg AL ANSWER :B

Discussion

26.	________ is also called ionisation enthalpy.
Answer» SOLUTION :IONISATION ENERGY

Discussion

27.	_______ isalso calledas autoionization .
Answer» SOLUTION :SELF IONIZATION

Discussion

28.	______ isa substancewhichincreases thereaction ratewithout being consumedin thereaction.
Answer» SOLUTION :CATALYST

Discussion

29.	………… is a relative periodic property.
Answer» ATOMIC radii IONIC radii electron AFFINITY electronegativity ANSWER :B

Discussion

30.	________ is a relative periodic property
Answer» ATOMIC RADII Ionic radii ELECTRON affinity ELECTRONEGATIVITY Answer :D

Discussion

31.	……………… is a process of coating Zinc on iron sheets by using electric current .
Answer» SOLUTION : GALVANIZATION

Discussion

32.	......... is a major component of biogas and CNG.
Answer» SOLUTION :METHANE

Discussion

33.	__________ isa metal whichisnon-conductor.
Answer» SOLUTION :TUNGSTEN

Discussion

34.	______ in temperature favours an endothermic reaction.
Answer» ANSWER :INCREASE

Discussion

35.	{:(" i. Boron family",,"(a) Group 17"),("ii. Carbon family",,"(b) Group 16"),(" iii. Nitrogen family",,"(c) Group 13"),("iv. Chalogen family",,"(d) Group 15"),("v. Halogen family",,"(e) Group 14"):}
Answer» SOLUTION :i-c, ii-e, iii-d, iv-b, v-a

Discussion

36.	{:(" i. Alkali metals",,"(a) Lanthanides & Actinides"),("ii. Alkaline earth metals",,"(b) Group 3-12"),("iii. Transition elements",,"(c) Group 2"),("iv. Inner transition elements",,"(d) Group 1"):}
Answer» SOLUTION :i-d, ii-c, iii-b, iv-a

Discussion

37.	. Hematite is converted into iron by using the blast fumace . Which are the substances fed into the blast furnace along with the ore of iron ?
Answer» ANSWER :Haemalite, COKE, LIME STONE

Discussion

38.	. Hematite is converted into iron by using the blast fumace . Which compound acts as the reducing agent in the blast furnace ?
Answer» ANSWER :CARBON MONOXIDE

Discussion

39.	_________ group contains the members of halogen family .
Answer» `17^(th)` `15^(th)` `18^(th)` `16^(th)` ANSWER :A

Discussion

40.	_________ group contains all gases at roomtemperature.
Answer» SOLUTION :18 or ZERO

Discussion

41.	……… group contains the member of halogen family.
Answer» 17TH 15TH 18TH 16TH ANSWER :A

Discussion

42.	…………. Forms the basis of modern periodic table.
Answer» SOLUTION :ATOMIC NUMBER

Discussion

43.	- COOH is a functional group of……………..
Answer» CARBOXYLIC ACIDS ester ether aldehyde ANSWER :A

Discussion

44.	{:("Column X ","Column Y "),("a. Petrol ","i. Heterogenous mixture "),("b. Graphite ","ii. Compound "),("c. Sucrose ","iii.Element "),("d. Milk ","iv. Hamogeneous mixture "),(,):}
Answer» ANSWER : a.(IV), B.(III), C.(ii), d.(i)

Discussion

45.	{:("Column X ","Column Y "),("a. Molarity " ," i. For very dilute solution "),("b. Molality " ," ii. No units"),("c. mole fraction"," iii.Mol L"^(–1)),("d. ppm " ," iv. independent of temperature"):}
Answer» Answer :a.(iii), B.(iv), C.(ii), d.(i)

Discussion

46.	{:("Column X ","Column Y "),("a. 8 g " CH_(4) ," i. 0.1 mol "),("b. 1.7 g NH"_(3) ," ii. 0.5 mol "),("c. HCHO "," iii.40% carbon "),("d. "C_(6)H_(12)O_(6) ," iv. Vapour density = 15"):}
Answer» Answer :a.(II), B.(i), C.(iv), d.(iii)

Discussion

47.	{:("Column X ","Column Y "),("a. 40 g of He" ," i." 6.022xx10^(23)"atoms"),("b. 35 g of Li " ," ii. 10 atoms"),("c. 40 u of He"," iii." 6.022xx10^(24)"atoms"),("d. 16 g of "O_(2) ," iv." 3.011xx10^(24) "atoms"):}
Answer» Answer :a.(iii), B.(iv), C.(II), d.(ii)

Discussion

48.	........ catalyst is used in hydrogenation of vegetable oils.
Answer» SOLUTION :NICKEL (NI)

Discussion

49.	_____ basedon therelationshipbetweenthenumberof moleculespresentinequalvolumesof gasesin differentconditions.
Answer» SOLUTION :AVOGADRO HYPOTHESIS

Discussion

50.	• Aspirin is an antipyretic. • Amoxicillin is an antibiotic Write any two unhealthy practices among people in using medicines.
Answer» Answer :* Selftreatment.Excessive USE of MEDICINE.Using medicine PRESCRIBED for OTHERS.*Don’t taking medicine at REGULAR intervals.

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

______ is usedforwhitewashing walls .

......... is used in black and white photography.

__________ is used for dental filling .

_______ is thesmallestparticleof anelementor compound .

_________ is the scienceof extractingmetalsfrom oresand modifyigmetals into alloys.

…………….. Is the process of reducing the roasted metallic oxide to metal

___________ is the process of purification of metal.

__________ is the periodicproperty which is used to predictthe nature of bonding between atoms in a molecule.

Aluminium is the most abundant metal in the earth's crust.

__________ is the minimum energy requiredto removean electron from a gaseousatom in its ground stateto form a cations.

_________ is the metal widely used for anodizing .

………………….. Is the main principle behind in Hydraulic method .

________ is the longestperiod in the periodical table.

………….. Is the longest period in the periodical table.

________ is the gradual destruction of metals by chemicalor electrochemicalreaction with the environment .

______ is the first member of the homologous series of alkynes.

.............. is the example of gas in liquid.

_____ is the common name of sodium hydroxide.

_____ is the best conductor of electricity.

_______ is silvery white metal.

_________is in liquid state at room temperature.

________ is foundin Madurai and Dindugal.

………………. Is defined as the slow and steady destruction of a metal by the environment

…………………. Is an ore of a aluminium and ……………..Is its mineral .

………………. Is an important metal to form amalgam.

________ is also called ionisation enthalpy.

_______ isalso calledas autoionization .

______ isa substancewhichincreases thereaction ratewithout being consumedin thereaction.

………… is a relative periodic property.

________ is a relative periodic property

……………… is a process of coating Zinc on iron sheets by using electric current .

......... is a major component of biogas and CNG.

__________ isa metal whichisnon-conductor.

______ in temperature favours an endothermic reaction.

{:(" i. Boron family",,"(a) Group 17"),("ii. Carbon family",,"(b) Group 16"),(" iii. Nitrogen family",,"(c) Group 13"),("iv. Chalogen family",,"(d) Group 15"),("v. Halogen family",,"(e) Group 14"):}

{:(" i. Alkali metals",,"(a) Lanthanides & Actinides"),("ii. Alkaline earth metals",,"(b) Group 3-12"),("iii. Transition elements",,"(c) Group 2"),("iv. Inner transition elements",,"(d) Group 1"):}

. Hematite is converted into iron by using the blast fumace . Which are the substances fed into the blast furnace along with the ore of iron ?

. Hematite is converted into iron by using the blast fumace . Which compound acts as the reducing agent in the blast furnace ?

_________ group contains the members of halogen family .

_________ group contains all gases at roomtemperature.

……… group contains the member of halogen family.

…………. Forms the basis of modern periodic table.

- COOH is a functional group of……………..

{:("Column X ","Column Y "),("a. Petrol ","i. Heterogenous mixture "),("b. Graphite ","ii. Compound "),("c. Sucrose ","iii.Element "),("d. Milk ","iv. Hamogeneous mixture "),(,):}

{:("Column X ","Column Y "),("a. Molarity " ," i. For very dilute solution "),("b. Molality " ," ii. No units"),("c. mole fraction"," iii.Mol L"^(–1)),("d. ppm " ," iv. independent of temperature"):}

{:("Column X ","Column Y "),("a. 8 g " CH_(4) ," i. 0.1 mol "),("b. 1.7 g NH"_(3) ," ii. 0.5 mol "),("c. HCHO "," iii.40% carbon "),("d. "C_(6)H_(12)O_(6) ," iv. Vapour density = 15"):}

{:("Column X ","Column Y "),("a. 40 g of He" ," i." 6.022xx10^(23)"atoms"),("b. 35 g of Li " ," ii. 10 atoms"),("c. 40 u of He"," iii." 6.022xx10^(24)"atoms"),("d. 16 g of "O_(2) ," iv." 3.011xx10^(24) "atoms"):}

........ catalyst is used in hydrogenation of vegetable oils.

_____ basedon therelationshipbetweenthenumberof moleculespresentinequalvolumesof gasesin differentconditions.

• Aspirin is an antipyretic. • Amoxicillin is an antibiotic Write any two unhealthy practices among people in using medicines.