15280 + Interview Questions in Chemistry Page 217 InterviewSolution

10801.	Which of the following can be obtained by the action of warm water on nitrides of aluminium?
Answer» Which of the following can be obtained by the action of warm water on nitrides of aluminium?

Discussion

10802.	__ is the process of formation of an insoluble solid when solutions are mixed.
Answer» __ is the process of formation of an insoluble solid when solutions are mixed.

Discussion

10803.	A black coloured magnetic compound X is formed when iron reacts with oxygen or air. What is X?
Answer» A black coloured magnetic compound X is formed when iron reacts with oxygen or air. What is X?

Discussion

10804.	Suggest five ways of use of natural resources which are developmentally and economically sound. (5)
Answer» Suggest five ways of use of natural resources which are developmentally and economically sound. (5)

Discussion

10805.	What happens when an aqueous solution of sulphur dioxide reacts with oxygen?
Answer» What happens when an aqueous solution of sulphur dioxide reacts with oxygen?

Discussion

10806.	Question 9(e) Five solutions A, B, C, D and E when tested with universal indicator showed pH as 4, 1, 11, 7 and 9, respectively. Which solution is (e) weakly alkaline?
Answer» Question 9(e) Five solutions A, B, C, D and E when tested with universal indicator showed pH as 4, 1, 11, 7 and 9, respectively. Which solution is (e) weakly alkaline?

Discussion

10807.	When 3, 3-dimethyl-2-butanol is heated with H2SO4 the major product obtained is
Answer» When 3, 3-dimethyl-2-butanol is heated with $H_{2} S O_{4}$ the major product obtained is

Discussion

10808.	In the cell: Zn, Zn2+(aq) \|\| H+(aq), H2(1 atm)Pt, during the working, the pH around cathode
Answer» In the cell: Zn, Zn²⁺(aq) \|\| H⁺(aq), H₂(1 atm)Pt, during the working, the p^H around cathode

Discussion

10809.	Which part of a food chain will get affected if one animal becoming extinct?
Answer» Which part of a food chain will get affected if one animal becoming extinct?

Discussion

10810.	Three elements A,B and C with similar properties have atomic masses X,Y and Z respectively. The mass of Y is approximately equal to the average mass of X and Z. What is such an arrangement of elements called? Give one example of such a set of elements. [2 MARKS]
Answer» Three elements A,B and C with similar properties have atomic masses X,Y and Z respectively. The mass of Y is approximately equal to the average mass of X and Z. What is such an arrangement of elements called? Give one example of such a set of elements. [2 MARKS]

Discussion

10811.	Noble gases do not react with other elements because
Answer» Noble gases do not react with other elements because

Discussion

10812.	In a food chain consisting of fish, frog, shrimp, duck and weed. What will be the position of frog, first being weed.3
Answer» In a food chain consisting of fish, frog, shrimp, duck and weed. What will be the position of frog, first being weed. 3

Discussion

10813.	Temporary hardness can be removed by which of the following process?
Answer» Temporary hardness can be removed by which of the following process?

Discussion

10814.	Which of the following is an alkyne ?
Answer» Which of the following is an alkyne ?

Discussion

10815.	Extract of Trial Balance as at 31st March,2016 Name of AccountsDebit Balance (Rs.)Credit Balance (Rs.)Purchases1,00,000 Additional Information During the year the proprietor, Mr. Rohan distributed goods worth Rs. 10,000 as free samples. Pass an adjusting entry and show effect on financial statements.
Answer» Extract of Trial Balance as at 31st March,2016 $\begin{matrix} Name of Accounts & Debit Balance (Rs.) & Credit Balance (Rs.) Purchases & 1, 00, 000 \end{matrix}$ Additional Information During the year the proprietor, Mr. Rohan distributed goods worth Rs. 10,000 as free samples. Pass an adjusting entry and show effect on financial statements.

10815.

Extract of Trial Balance as at 31st March,2016 Name of AccountsDebit Balance (Rs.)Credit Balance (Rs.)Purchases1,00,000 Additional Information During the year the proprietor, Mr. Rohan distributed goods worth Rs. 10,000 as free samples. Pass an adjusting entry and show effect on financial statements.

Answer»

Extract of Trial Balance

as at 31st March,2016

$\begin{matrix} Name of Accounts & Debit Balance (Rs.) & Credit Balance (Rs.) Purchases & 1, 00, 000 \end{matrix}$

Additional Information

During the year the proprietor, Mr. Rohan distributed goods worth Rs. 10,000 as free samples.
Pass an adjusting entry and show effect on financial statements.

Discussion

10816.	Why are all minerals are not ores but all ores are minerals?Give reason.
Answer» Why are all minerals are not ores but all ores are minerals?Give reason.

Discussion

10817.	Choose the correct balanced chemical equation involving reaction of copper sulphate with ammonium hydroxide?
Answer» Choose the correct balanced chemical equation involving reaction of copper sulphate with ammonium hydroxide?

Discussion

10818.	Which compound shows the highest covalent property?
Answer» Which compound shows the highest covalent property?

Discussion

10819.	Ordinary water contains one part of heavy water per 6000 parts by weight.The number of heavy water molecules present in a drop of water of volume 0.01 ml is (Density of water is 1 g/ml)
Answer» Ordinary water contains one part of heavy water per 6000 parts by weight.The number of heavy water molecules present in a drop of water of volume 0.01 ml is (Density of water is 1 g/ml)

10819.

Ordinary water contains one part of heavy water per 6000 parts by weight.The number of heavy water molecules present in a drop of water of volume 0.01 ml is (Density of water is 1 g/ml)

Answer»

Ordinary water contains one part of heavy water per 6000 parts by weight.The number of heavy water molecules present in a drop of water of volume 0.01 ml is (Density of water is 1 g/ml)

Discussion

10820.	Atomic number of ‘Y' = 12. Its mass number is 25. How many neutrons do you think are present in the nucleus of 'Y'?
Answer» Atomic number of ‘Y' = 12. Its mass number is 25. How many neutrons do you think are present in the nucleus of 'Y'?

Discussion

10821.	In electrolysis, reduction takes place at ___
Answer» In electrolysis, reduction takes place at ___

Discussion

10822.	An electric bulb is rated 220V, 100W. What will be the current flowing through the filament of the bulb and resistance of the bulb?
Answer» An electric bulb is rated 220V, 100W. What will be the current flowing through the filament of the bulb and resistance of the bulb?

Discussion

10823.	Arrange the following isolectronic species in increasing order of their ionic radii
Answer» Arrange the following isolectronic species in increasing order of their ionic radii

Discussion

10824.	Number of Steriosomers of the compountd 2-chloro-4-methylhex-2-ene is/are
Answer» Number of Steriosomers of the compountd 2-chloro-4-methylhex-2-ene is/are

Discussion

10825.	The pH of two solutions are 11 and 7.7. What can you say about their natures?
Answer» The pH of two solutions are 11 and 7.7. What can you say about their natures?

Discussion

10826.	Which of the folloiwng has a triple bond as well as single bonds? (a) ethene (b) methane (c) ethyne (d) nitrogen
Answer» Which of the folloiwng has a triple bond as well as single bonds? (a) ethene (b) methane (c) ethyne (d) nitrogen

10826.

Which of the folloiwng has a triple bond as well as single bonds? (a) ethene (b) methane (c) ethyne (d) nitrogen

Answer»

Which of the folloiwng has a triple bond as well as single bonds?
(a) ethene

(b) methane

(c) ethyne

(d) nitrogen

Discussion

10827.	How many positional isomers are possible in the molecule of C4H10O?
Answer» How many positional isomers are possible in the molecule of $C_{4} H_{10} O$ ?

Discussion

10828.	Which of the following feature is common to both physical and chemical change?
Answer» Which of the following feature is common to both physical and chemical change?

Discussion

10829.	4.5 moles of calcium carbonate are reacted with dilute hydrochloric acid. What is the volume of carbon dioxide liberated at STP?
Answer» 4.5 moles of calcium carbonate are reacted with dilute hydrochloric acid. What is the volume of carbon dioxide liberated at STP?

10829.

4.5 moles of calcium carbonate are reacted with dilute hydrochloric acid. What is the volume of carbon dioxide liberated at STP?

Answer»

4.5 moles of calcium carbonate are reacted with dilute hydrochloric acid.

What is the volume of carbon dioxide liberated at STP?

Discussion

10830.	What will happen when metals react with water?
Answer» What will happen when metals react with water?

Discussion

10831.	Which of the following properties generally increases on moving from top to bottom in a group?
Answer» Which of the following properties generally increases on moving from top to bottom in a group?

Discussion

10832.	The dark rich red-brown colour developed after applying natural henna to the legs is an example of _______
Answer» The dark rich red-brown colour developed after applying natural henna to the legs is an example of _______

10832.

The dark rich red-brown colour developed after applying natural henna to the legs is an example of _______

Answer»

The dark rich red-brown colour developed after applying natural henna to the legs is an example of _______

Discussion

10833.	Which of the following properties in metals are caused by metallic bonding?
Answer» Which of the following properties in metals are caused by metallic bonding?

Discussion

10834.	What happens when SO2 gas is passed through a potassium dichromate solution?
Answer» What happens when SO₂ gas is passed through a potassium dichromate solution?

Discussion

10835.	Which of the following reactions could be termed as calcination?
Answer» Which of the following reactions could be termed as calcination?

Discussion

10836.	Which of the following are allotropes of carbon? 1. Carbon dioxide 2. Diamond 3. Carbon monoxide 4. Graphite
Answer» Which of the following are allotropes of carbon? 1. Carbon dioxide 2. Diamond 3. Carbon monoxide 4. Graphite

10836.

Which of the following are allotropes of carbon? 1. Carbon dioxide 2. Diamond 3. Carbon monoxide 4. Graphite

Answer»

Which of the following are allotropes of carbon?

1. Carbon dioxide 2. Diamond 3. Carbon monoxide 4. Graphite

Discussion

10837.	Heap of garbage found in some site used for the disposal of waste materials by burial is called ___.
Answer» Heap of garbage found in some site used for the disposal of waste materials by burial is called ___.

Discussion

10838.	Select the correct order used in extraction of Metals
Answer» Select the correct order used in extraction of Metals

Discussion

10839.	Which of the following species have maximum number of unpaired electron?
Answer» Which of the following species have maximum number of unpaired electron?

Discussion

10840.	If octane and propane are members of a homologous series, then these two compounds differ by ________.
Answer» If octane and propane are members of a homologous series, then these two compounds differ by ________.

Discussion

10841.	The number of compounds given below that belong to same homologous series are CH2O2, C3H8O, C2H4O2, C2H6, C3H6O2, C5H10O2, C3H8
Answer» The number of compounds given below that belong to same homologous series are $C H_{2} O_{2}, C_{3} H_{8} O, C_{2} H_{4} O_{2}, C_{2} H_{6}, C_{3} H_{6} O_{2}, C_{5} H_{10} O_{2}, C_{3} H_{8}$

Discussion

10842.	The reaction in which a more reactive element displaces the less reactive element from its compound is called _____________.
Answer» The reaction in which a more reactive element displaces the less reactive element from its compound is called _____________.

Discussion

10843.	Write a note on the position of elements in the periodic table? [5 MARKS]
Answer» Write a note on the position of elements in the periodic table? [5 MARKS]

Discussion

10844.	State: (a) Gay - Lussac's Law of combining volumes, (b) Avogadro's law.
Answer» State: (a) Gay - Lussac's Law of combining volumes, (b) Avogadro's law.

Discussion

10845.	What happens when iron nail is left exposed to humid air?
Answer» What happens when iron nail is left exposed to humid air?

Discussion

10846.	(a) Define an ecosystem. Give examples of any two ecosystems. (b) List the biotic and abiotic components of an ecosystem.
Answer» (a) Define an ecosystem. Give examples of any two ecosystems. (b) List the biotic and abiotic components of an ecosystem.

10846.

(a) Define an ecosystem. Give examples of any two ecosystems. (b) List the biotic and abiotic components of an ecosystem.

Answer»

(a) Define an ecosystem. Give examples of any two ecosystems.

(b) List the biotic and abiotic components of an ecosystem.

Discussion

10847.	An aqueous solution of a mixture of two inorganic salts, when treated with dilute HCl, gave a precipitate (P) and a filtrate (Q). The precipitate (P) was found to dissolve in hot water. The filtrate (Q) remained unchanged when treated with H2S in a dilute mineral acid medium. However, it gave a precipitate (R) with H2S in an ammoniacal medium. The precipitate R gave a coloured solution (S) when treated with H2O2 in an aqueous NaOH medium. The precipitate P contains
Answer» An aqueous solution of a mixture of two inorganic salts, when treated with dilute HCl, gave a precipitate (P) and a filtrate (Q). The precipitate (P) was found to dissolve in hot water. The filtrate (Q) remained unchanged when treated with $H_{2} S$ in a dilute mineral acid medium. However, it gave a precipitate (R) with $H_{2} S$ in an ammoniacal medium. The precipitate R gave a coloured solution (S) when treated with $H_{2} O_{2}$ in an aqueous NaOH medium. The precipitate P contains

Discussion

10848.	Can copper sulphate solution be stirred by silver spoon.Explain?
Answer» Can copper sulphate solution be stirred by silver spoon.Explain?

Discussion

10849.	Give the structure of Al2O3.
Answer» Give the structure of $A l_{2} O_{3}$ .

Discussion

10850.	What do we mean by directional or non directional nature of bond of a solid? For eg., covalent bonds are considered directional in nature. Does this property define whether a solid is brittle or not?
Answer» What do we mean by directional or non directional nature of bond of a solid? For eg., covalent bonds are considered directional in nature. Does this property define whether a solid is brittle or not?

Discussion

Explore topic-wise InterviewSolutions in .

Which of the following can be obtained by the action of warm water on nitrides of aluminium?

__ is the process of formation of an insoluble solid when solutions are mixed.

A black coloured magnetic compound X is formed when iron reacts with oxygen or air. What is X?

Suggest five ways of use of natural resources which are developmentally and economically sound. (5)

What happens when an aqueous solution of sulphur dioxide reacts with oxygen?

Question 9(e) Five solutions A, B, C, D and E when tested with universal indicator showed pH as 4, 1, 11, 7 and 9, respectively. Which solution is (e) weakly alkaline?

When 3, 3-dimethyl-2-butanol is heated with H2SO4 the major product obtained is

In the cell: Zn, Zn2+(aq) || H+(aq), H2(1 atm)Pt, during the working, the pH around cathode

Which part of a food chain will get affected if one animal becoming extinct?

Three elements A,B and C with similar properties have atomic masses X,Y and Z respectively. The mass of Y is approximately equal to the average mass of X and Z. What is such an arrangement of elements called? Give one example of such a set of elements. [2 MARKS]

Noble gases do not react with other elements because

In a food chain consisting of fish, frog, shrimp, duck and weed. What will be the position of frog, first being weed.3

Temporary hardness can be removed by which of the following process?

Which of the following is an alkyne ?

Why are all minerals are not ores but all ores are minerals?Give reason.

Choose the correct balanced chemical equation involving reaction of copper sulphate with ammonium hydroxide?

Which compound shows the highest covalent property?

Ordinary water contains one part of heavy water per 6000 parts by weight.The number of heavy water molecules present in a drop of water of volume 0.01 ml is (Density of water is 1 g/ml)

Atomic number of ‘Y' = 12. Its mass number is 25. How many neutrons do you think are present in the nucleus of 'Y'?

In electrolysis, reduction takes place at ___

An electric bulb is rated 220V, 100W. What will be the current flowing through the filament of the bulb and resistance of the bulb?

Arrange the following isolectronic species in increasing order of their ionic radii

Number of Steriosomers of the compountd 2-chloro-4-methylhex-2-ene is/are

The pH of two solutions are 11 and 7.7. What can you say about their natures?

Which of the folloiwng has a triple bond as well as single bonds? (a) ethene (b) methane (c) ethyne (d) nitrogen

How many positional isomers are possible in the molecule of C4H10O?

Which of the following feature is common to both physical and chemical change?

4.5 moles of calcium carbonate are reacted with dilute hydrochloric acid. What is the volume of carbon dioxide liberated at STP?

What will happen when metals react with water?

Which of the following properties generally increases on moving from top to bottom in a group?

The dark rich red-brown colour developed after applying natural henna to the legs is an example of _______

Which of the following properties in metals are caused by metallic bonding?

What happens when SO2 gas is passed through a potassium dichromate solution?

Which of the following reactions could be termed as calcination?

Which of the following are allotropes of carbon? 1. Carbon dioxide 2. Diamond 3. Carbon monoxide 4. Graphite

Heap of garbage found in some site used for the disposal of waste materials by burial is called ___.

Select the correct order used in extraction of Metals

Which of the following species have maximum number of unpaired electron?

If octane and propane are members of a homologous series, then these two compounds differ by ________.

The number of compounds given below that belong to same homologous series are CH2O2, C3H8O, C2H4O2, C2H6, C3H6O2, C5H10O2, C3H8

The reaction in which a more reactive element displaces the less reactive element from its compound is called _____________.

Write a note on the position of elements in the periodic table? [5 MARKS]

State: (a) Gay - Lussac's Law of combining volumes, (b) Avogadro's law.

What happens when iron nail is left exposed to humid air?

(a) Define an ecosystem. Give examples of any two ecosystems. (b) List the biotic and abiotic components of an ecosystem.

Can copper sulphate solution be stirred by silver spoon.Explain?

Give the structure of Al2O3.

What do we mean by directional or non directional nature of bond of a solid? For eg., covalent bonds are considered directional in nature. Does this property define whether a solid is brittle or not?