5083 + Interview Questions in Chemistry Page 58 InterviewSolution

2851.	Match the entries in Column - I with those in Column - IIColumn - IColumn - IIa.A chalk water1A gaseousmixturemixtureb.A glucose2A heterogeneoussolutionsolid-liquid mixturec.Carbonated3A homogeneouswatersolid-liquid mixtured.Air4.A gas-liquid mixture
Answer» Match the entries in Column - I with those in Column - II $\begin{matrix} Column - I & Column - II a. & A chalk water & 1 & A gaseous mixture & mixture b. & A glucose & 2 & A heterogeneous solution & solid-liquid mixture c. & Carbonated & 3 & A homogeneous water & solid-liquid mixture d. & Air & 4. & A gas-liquid mixture \end{matrix}$

Discussion

2852.	Which component of air is commonly used in fire extinguishers and why?
Answer» Which component of air is commonly used in fire extinguishers and why?

Discussion

2853.	Which of the following makes the soil basic?
Answer» Which of the following makes the soil basic?

Discussion

2854.	Answer the following questions: i) Setting of curd is regarded as a chemical change, explain why? ii) Explain with the help of a reaction how baking soda is treated with vinegar?
Answer» Answer the following questions: i) Setting of curd is regarded as a chemical change, explain why? ii) Explain with the help of a reaction how baking soda is treated with vinegar?

2854.

Answer the following questions: i) Setting of curd is regarded as a chemical change, explain why? ii) Explain with the help of a reaction how baking soda is treated with vinegar?

Answer»

Answer the following questions:

i) Setting of curd is regarded as a chemical change, explain why?

ii) Explain with the help of a reaction how baking soda is treated with vinegar?

Discussion

2855.	One g equivalent of Na metal is formed from electrolysis of fused NaCl. Number of mole of Al from the fused Na3AlF6 with the same current passed is:
Answer» One $g$ equivalent of $N a$ metal is formed from electrolysis of fused $N a C l$ . Number of mole of $A l$ from the fused $N a_{3} A l F_{6}$ with the same current passed is:

Discussion

2856.	find the total number of geometrical isomers and total number of enantiomers in each of the following: \lbrack Ma_3b_2c\rbrack, \lbrack Ma_2b_2c_2\rbrack, \lbrack Mab_3c_4\rbrack, \lbrack Mabcd_3\rbrack, \lbrack Mab_5\rbrack, \lbrack Mab_4\rbrack, \lbrack Mab_3\rbrack. (where M is a central metal atom and a,b,c,d are ligands.
Answer» find the total number of geometrical isomers and total number of enantiomers in each of the following: \lbrack Ma_3b_2c\rbrack, \lbrack Ma_2b_2c_2\rbrack, \lbrack Mab_3c_4\rbrack, \lbrack Mabcd_3\rbrack, \lbrack Mab_5\rbrack, \lbrack Mab_4\rbrack, \lbrack Mab_3\rbrack. (where M is a central metal atom and a,b,c,d are ligands.

Discussion

2857.	Two metalic oxides contain 27.6% and 30% o2 respectively.If the formula of the first oxide is X3O4,what will be the formula of 2nd oxide?
Answer» Two metalic oxides contain 27.6% and 30% o2 respectively.If the formula of the first oxide is X3O4,what will be the formula of 2nd oxide?

Discussion

2858.	Does the law of multiple proportions violate the law of conservation of mass?As the latter states that elements always react in the same proportion so how an element A combine with different volumes of element B
Answer» Does the law of multiple proportions violate the law of conservation of mass? As the latter states that elements always react in the same proportion so how an element A combine with different volumes of element B

Discussion

2859.	EAN of platinium in [pt(NH3)6] is 86.the atomic number of pt is?
Answer» EAN of platinium in [pt(NH3)6] is 86.the atomic number of pt is?

Discussion

2860.	Question 14In the soap micelles(a) The ionic end of soap is on the surface of the cluster while the carbon chain is in the interior of the cluster.(b) Ionic end of soap is in the interior of the cluster and the carbon chain is out of the cluster.(c) Both ionic end and carbon chain are in the interior of the cluster.(d) Both ionic end and carbon chain are on the exterior of the cluster.
Answer» Question 14 In the soap micelles (a) The ionic end of soap is on the surface of the cluster while the carbon chain is in the interior of the cluster. (b) Ionic end of soap is in the interior of the cluster and the carbon chain is out of the cluster. (c) Both ionic end and carbon chain are in the interior of the cluster. (d) Both ionic end and carbon chain are on the exterior of the cluster.

Discussion

2861.	Is vinegar acidic/basic/neutral? How would you verify it? [2 MARKS]
Answer» Is vinegar acidic/basic/neutral? How would you verify it? [2 MARKS]

Discussion

2862.	The atomicity of Na is 1. What does it mean?
Answer» The atomicity of Na is 1. What does it mean?

Discussion

2863.	The reaction 2A+B2→2AB is an elementary reaction. For a certain quantity of reactants, if the volume of the reaction vessel is reduced by a factor of 3, the rate of the reaction increases by a factor of (Round off to the Nearest Integer)
Answer» The reaction $2 A + B_{2} \to 2 A B$ is an elementary reaction. For a certain quantity of reactants, if the volume of the reaction vessel is reduced by a factor of 3, the rate of the reaction increases by a factor of (Round off to the Nearest Integer)

Discussion

2864.	Why does the process of crystallisation work?
Answer» Why does the process of crystallisation work?

Discussion

2865.

Match the following. Group ‘A’ Group ‘B’ (a) Sodium 1. MgO (b) Potassium 2. FeS (c) Iron sulphide 3. Na (d) Sugar 4. K (e) Magnesium oxide 5. C12H22O11 6. CO2

Answer»

Match the following.

Group ‘A’		Group ‘B’
(a)	Sodium	1.	MgO
(b)	Potassium	2.	FeS
(c)	Iron sulphide	3.	Na
(d)	Sugar	4.	K
(e)	Magnesium oxide	5.	C₁₂H₂₂O₁₁
		6.	CO₂

Discussion

2866.	Question 10 Which of the following is not a source of wastewater? (a) Sewers (b) Homes (c) Industries (d) Hospitals
Answer» Question 10 Which of the following is not a source of wastewater? (a) Sewers (b) Homes (c) Industries (d) Hospitals

2866.

Question 10 Which of the following is not a source of wastewater? (a) Sewers (b) Homes (c) Industries (d) Hospitals

Answer»

Question 10

Which of the following is not a source of wastewater?
(a) Sewers
(b) Homes
(c) Industries
(d) Hospitals

Discussion

2867.	SI unit of entropy?
Answer» SI unit of entropy?

Discussion

2868.	How many atoms are present in 1 mole of nitrogen?
Answer» How many atoms are present in 1 mole of nitrogen?

Discussion

2869.	Due to change in which of the following properties, matter can change from one state to another?
Answer» Due to change in which of the following properties, matter can change from one state to another?

Discussion

2870.	Saloni took a piece of burning charcoal and collected the gas evolved in a test tube.(a) How will she find the nature of the gas ? (b) Write down word equations of all the reactions taking place in this process
Answer» Saloni took a piece of burning charcoal and collected the gas evolved in a test tube. (a) How will she find the nature of the gas ? (b) Write down word equations of all the reactions taking place in this process

Discussion

2871.	Which of the following correctly explains extinction?
Answer» Which of the following correctly explains extinction?

Discussion

2872.	What is an atom? What are it's molecules?
Answer» What is an atom? What are it's molecules?

Discussion

2873.	36. The ksp of AgCrO4,AgCl,AgBr and AgI are respectively, 1.110-12,1.810*-10,510*-13,8.310**-17.Which one of the following salts will precipitate last if AgNO3 solution is added to the solution containing equal moles of NaCl, NaBr,NaI and Na2CrO4?
Answer» 36. The ksp of AgCrO4,AgCl,AgBr and AgI are respectively, 1.110-12,1.810*-10,510*-13,8.310**-17.Which one of the following salts will precipitate last if AgNO3 solution is added to the solution containing equal moles of NaCl, NaBr,NaI and Na2CrO4?

Discussion

2874.	What type of change is artifical ripening of fruit?
Answer» What type of change is artifical ripening of fruit?

Discussion

2875.	This is an example of which change:-
Answer» This is an example of which change:-

2875.

This is an example of which change:-

Answer»

This is an example of which change:-

Discussion

2876.	What is magnesium oxide and calcium carbonate?
Answer» What is magnesium oxide and calcium carbonate?

Discussion

2877.	Asilver electrode is immersed in saturated Ag,SO4 (aq)solution. The electrode potential with reşpect, tostandard hydrogen electrode is found to be 0.711 VDetermine Ksp (Ag2SO)Given E0.80 VAg IAg10-5.5
Answer» Asilver electrode is immersed in saturated Ag,SO4 (aq)solution. The electrode potential with reşpect, tostandard hydrogen electrode is found to be 0.711 VDetermine Ksp (Ag2SO)Given E0.80 VAg IAg10-5.5

Discussion

2878.	Given, E0Cr(3+)/Cr=−0.74V;E0MnO−4/Mn2+=1.51V E0Cr2O2−7/Cr3+=1.33V;E0Cl/Cl−=1.36V Based on the data given above strongest oxidising agent will be
Answer» Given, $E_{C r^{(} 3 +) / C r}^{0} = - 0.74 V; E_{M n O_{4}^{-} / M n^{2 +}}^{0} = 1.51 V$ $E_{C r_{2} O_{7}^{2 -} / C r^{3 +}}^{0} = 1.33 V; E_{C l / C l^{-}}^{0} = 1.36 V$ Based on the data given above strongest oxidising agent will be

Discussion

2879.	What do you mean by shearing? Does this process hurt the sheep? why/why not? [3 MARKS]
Answer» What do you mean by shearing? Does this process hurt the sheep? why/why not? [3 MARKS]

Discussion

2880.	Question 23 Draw a figure showing two animals, two birds and a few trees as a part of a forest.
Answer» Question 23 Draw a figure showing two animals, two birds and a few trees as a part of a forest.

2880.

Question 23 Draw a figure showing two animals, two birds and a few trees as a part of a forest.

Answer»

Question 23

Draw a figure showing two animals, two birds and a few trees as a part of a forest.

Discussion

2881.	Mention the characteristics of the following:a) Seed dispersal through animals.b) Seed dispersal through birds.
Answer» Mention the characteristics of the following: a) Seed dispersal through animals. b) Seed dispersal through birds.

Discussion

2882.	Identify the odd one out and justify.(a) Chloride, nitrate, hydride, ammonium(b) Hydrogen chloride, sodium hydroxide, calcium oxide, ammonia(c) Acetic acid, carbonic acid, hydrochloric acid, nitric acid(d) Ammonium chloride, sodium chloride, potassium nitrate, sodium sulphate(e) Sodium nitrate, sodium carbonate, sodium sulphate, sodium chloride(f) Calcium oxide, magnesium oxide, zinc oxide, sodium oxide.(g) Crystalline blue vitriol, crystalline common salt, crystalline ferrous sulphate, crystalline sodium carbonate.(h) Sodium chloride, potassium hydroxide, acetic acid, sodium acetate.
Answer» Identify the odd one out and justify. (a) Chloride, nitrate, hydride, ammonium (b) Hydrogen chloride, sodium hydroxide, calcium oxide, ammonia (c) Acetic acid, carbonic acid, hydrochloric acid, nitric acid (d) Ammonium chloride, sodium chloride, potassium nitrate, sodium sulphate (e) Sodium nitrate, sodium carbonate, sodium sulphate, sodium chloride (f) Calcium oxide, magnesium oxide, zinc oxide, sodium oxide. (g) Crystalline blue vitriol, crystalline common salt, crystalline ferrous sulphate, crystalline sodium carbonate. (h) Sodium chloride, potassium hydroxide, acetic acid, sodium acetate.

Discussion

2883.	Match the following and choose the correct option:i.A - horizona.Small lumps of rocksii.B - horizonb.Partially decomposed organic matteriii.C - horizonc. Rich in humus, living creatures, and inorganic mineralsiv.O-horizond.Less humus and more minerals, compact
Answer» Match the following and choose the correct option: $\begin{matrix} i . A - horizon & a . Small lumps of rocks i i . B - horizon & b . Partially decomposed organic matter i i i . C - horizon & c . Rich in humus, living creatures, and inorganic minerals i v . O-horizon & d . Less humus and more minerals, compact \end{matrix}$

2883.

Match the following and choose the correct option:i.A - horizona.Small lumps of rocksii.B - horizonb.Partially decomposed organic matteriii.C - horizonc. Rich in humus, living creatures, and inorganic mineralsiv.O-horizond.Less humus and more minerals, compact

Answer»

Match the following and choose the correct option:

\begin{matrix} i . A - horizon & a . Small lumps of rocks i i . B - horizon & b . Partially decomposed organic matter i i i . C - horizon & c . Rich in humus, living creatures, and inorganic minerals i v . O-horizon & d . Less humus and more minerals, compact \end{matrix}

Discussion

2884.	Anmol's school celebrates World water day every year. Which of the following according to you is the most appropriate reason for this ?
Answer» Anmol's school celebrates World water day every year. Which of the following according to you is the most appropriate reason for this ?

Discussion

2885.	Which one of the following is not a step in wastewater treatment?
Answer» Which one of the following is not a step in wastewater treatment?

Discussion

2886.	What is sludge? Explain how it is treated.
Answer» What is sludge? Explain how it is treated.

Discussion

2887.	Rearrange the jumbled letter 'EEBTOOTR' to obtain the name of the indicator shown in the figure given below. __
Answer» Rearrange the jumbled letter 'EEBTOOTR' to obtain the name of the indicator shown in the figure given below. __

2887.

Rearrange the jumbled letter 'EEBTOOTR' to obtain the name of the indicator shown in the figure given below. __

Answer»

Rearrange the jumbled letter 'EEBTOOTR' to obtain the name of the indicator shown in the figure given below.

__

Discussion

2888.	An element X has a mass number 4 and atomic number 2. Write the valency of this element?
Answer» An element X has a mass number 4 and atomic number 2. Write the valency of this element?

Discussion

2889.	Identify the correct pairs of gases and their corresponding major sources.
Answer» Identify the correct pairs of gases and their corresponding major sources.

Discussion

2890.	Which of the following is not a physical property of a substance?
Answer» Which of the following is not a physical property of a substance?

Discussion

2891.	why is the rate of a chemical reaction in differential form written in negativ
Answer» why is the rate of a chemical reaction in differential form written in negativ

Discussion

2892.	The branchy part of a tree above the trunk is known as:
Answer» The branchy part of a tree above the trunk is known as:

Discussion

2893.	Differentiate between physical and chemical change.
Answer» Differentiate between physical and chemical change.

Discussion

2894.	Graphite is a good conductor of electricity because it has
Answer» Graphite is a good conductor of electricity because it has

Discussion

2895.	An equilibrium mixture of the reaction2H,s (g)--2H2(g) + S2(g), had 0.5 mole H2S,0.10 mole H2 and 0.4 mole S2 in one litre vessel. Thevalue of equilibrium constant (K) in mole litre i's
Answer» An equilibrium mixture of the reaction2H,s (g)--2H2(g) + S2(g), had 0.5 mole H2S,0.10 mole H2 and 0.4 mole S2 in one litre vessel. Thevalue of equilibrium constant (K) in mole litre i's

Discussion

2896.	Which of the following is the main characteristic of a chemical change?
Answer» Which of the following is the main characteristic of a chemical change?

Discussion

2897.	Contaminant is:
Answer» Contaminant is:

Discussion

2898.	Which of the following gives the correct increasing order of acidic strength?(a) Water < Acetic Acid< Hydrochloric Acid(b) Water < Hydrochloric Acid < Acetic Acid(c) Acetic Acid < Water < Hydrochloric Acid (d) Hydrochloric Acid < Water < Acetic Acid
Answer» Which of the following gives the correct increasing order of acidic strength? (a) Water < Acetic Acid< Hydrochloric Acid (b) Water < Hydrochloric Acid < Acetic Acid (c) Acetic Acid < Water < Hydrochloric Acid (d) Hydrochloric Acid < Water < Acetic Acid

Discussion

2899.	Assertion-Molecularity has no meaning for a complex reaction Reason- Molecularitu defined only for r
Answer» Assertion-Molecularity has no meaning for a complex reaction Reason- Molecularitu defined only for r

Discussion

2900.	Which of the following is a good conductor of electricity?
Answer» Which of the following is a good conductor of electricity?

Discussion

Explore topic-wise InterviewSolutions in .

Match the entries in Column - I with those in Column - IIColumn - IColumn - IIa.A chalk water1A gaseousmixturemixtureb.A glucose2A heterogeneoussolutionsolid-liquid mixturec.Carbonated3A homogeneouswatersolid-liquid mixtured.Air4.A gas-liquid mixture

Which component of air is commonly used in fire extinguishers and why?

Which of the following makes the soil basic?

Answer the following questions: i) Setting of curd is regarded as a chemical change, explain why? ii) Explain with the help of a reaction how baking soda is treated with vinegar?

One g equivalent of Na metal is formed from electrolysis of fused NaCl. Number of mole of Al from the fused Na3AlF6 with the same current passed is:

Two metalic oxides contain 27.6% and 30% o2 respectively.If the formula of the first oxide is X3O4,what will be the formula of 2nd oxide?

Does the law of multiple proportions violate the law of conservation of mass?As the latter states that elements always react in the same proportion so how an element A combine with different volumes of element B

EAN of platinium in [pt(NH3)6] is 86.the atomic number of pt is?

Is vinegar acidic/basic/neutral? How would you verify it? [2 MARKS]

The atomicity of Na is 1. What does it mean?

The reaction 2A+B2→2AB is an elementary reaction. For a certain quantity of reactants, if the volume of the reaction vessel is reduced by a factor of 3, the rate of the reaction increases by a factor of (Round off to the Nearest Integer)

Why does the process of crystallisation work?

Match the following. Group ‘A’ Group ‘B’ (a) Sodium 1. MgO (b) Potassium 2. FeS (c) Iron sulphide 3. Na (d) Sugar 4. K (e) Magnesium oxide 5. C12H22O11 6. CO2

Question 10 Which of the following is not a source of wastewater? (a) Sewers (b) Homes (c) Industries (d) Hospitals

SI unit of entropy?

How many atoms are present in 1 mole of nitrogen?

Due to change in which of the following properties, matter can change from one state to another?

Saloni took a piece of burning charcoal and collected the gas evolved in a test tube.​(a) How will she find the nature of the gas ? (b) Write down word equations of all the reactions taking place in this process

Which of the following correctly explains extinction?

What is an atom? What are it's molecules?

36. The ksp of AgCrO4,AgCl,AgBr and AgI are respectively, 1.1*10**-12,1.8*10**-10,5*10**-13,8.3*10**-17.Which one of the following salts will precipitate last if AgNO3 solution is added to the solution containing equal moles of NaCl, NaBr,NaI and Na2CrO4?

What type of change is artifical ripening of fruit?

This is an example of which change:-

What is magnesium oxide and calcium carbonate?

Asilver electrode is immersed in saturated Ag,SO4 (aq)solution. The electrode potential with reşpect, tostandard hydrogen electrode is found to be 0.711 VDetermine Ksp (Ag2SO)Given E0.80 VAg IAg10-5.5

Given, E0Cr(3+)/Cr=−0.74V;E0MnO−4/Mn2+=1.51V E0Cr2O2−7/Cr3+=1.33V;E0Cl/Cl−=1.36V Based on the data given above strongest oxidising agent will be

What do you mean by shearing? Does this process hurt the sheep? why/why not? [3 MARKS]

Question 23 Draw a figure showing two animals, two birds and a few trees as a part of a forest.

Mention the characteristics of the following:a) Seed dispersal through animals.b) Seed dispersal through birds.

Match the following and choose the correct option:i.A - horizona.Small lumps of rocksii.B - horizonb.Partially decomposed organic matteriii.C - horizonc. Rich in humus, living creatures, and inorganic mineralsiv.O-horizond.Less humus and more minerals, compact

Anmol's school celebrates World water day every year. Which of the following according to you is the most appropriate reason for this ?

Which one of the following is not a step in wastewater treatment?

What is sludge? Explain how it is treated.

Rearrange the jumbled letter 'EEBTOOTR' to obtain the name of the indicator shown in the figure given below. __

An element X has a mass number 4 and atomic number 2. Write the valency of this element?

Identify the correct pairs of gases and their corresponding major sources.

Which of the following is not a physical property of a substance?

why is the rate of a chemical reaction in differential form written in negativ

The branchy part of a tree above the trunk is known as:

Differentiate between physical and chemical change.

Graphite is a good conductor of electricity because it has

An equilibrium mixture of the reaction2H,s (g)--2H2(g) + S2(g), had 0.5 mole H2S,0.10 mole H2 and 0.4 mole S2 in one litre vessel. Thevalue of equilibrium constant (K) in mole litre i's

Which of the following is the main characteristic of a chemical change?

Contaminant is:

Which of the following gives the correct increasing order of acidic strength?(a) Water < Acetic Acid< Hydrochloric Acid(b) Water < Hydrochloric Acid < Acetic Acid(c) Acetic Acid < Water < Hydrochloric Acid (d) Hydrochloric Acid < Water < Acetic Acid

Assertion-Molecularity has no meaning for a complex reaction Reason- Molecularitu defined only for r

Which of the following is a good conductor of electricity?

Saloni took a piece of burning charcoal and collected the gas evolved in a test tube.(a) How will she find the nature of the gas ? (b) Write down word equations of all the reactions taking place in this process