5083 + Interview Questions in Chemistry Page 59 InterviewSolution

2901.	A simple pendulum takes 32s to complete 20 oscillations. What is the time period of the pendulum?
Answer» A simple pendulum takes 32s to complete 20 oscillations. What is the time period of the pendulum?

Discussion

2902.	If the value of an equilibrium cons†an t for a particular reaction is 1.6 × 1012, then at equilibrium the system will contain
Answer» If the value of an equilibrium cons†an t for a particular reaction is 1.6 × 1012, then at equilibrium the system will contain

Discussion

2903.	The problems associated with wastewater are:
Answer» The problems associated with wastewater are:

Discussion

2904.	Question 6Explain circumstances leading to acid rain. How does acid rain affect us?
Answer» Question 6 Explain circumstances leading to acid rain. How does acid rain affect us?

Discussion

2905.	The positively charged and negatively charged ions are called _______ and _______.
Answer» The positively charged and negatively charged ions are called _______ and _______.

Discussion

2906.	A water treatment plant treats 6000 m3 of water per day. As a part of the treatment process, discrete particles are required to be settled in a clarifier. A column test indicates that an overflow rate of 1.5 m per hour would produce the desired removal of particles through settling in the clarifier having a depth of 3.0 m. The volume of the required clarifier, (in m3, round off to 1 decimal place) would be500
Answer» A water treatment plant treats $6000 m^{3}$ of water per day. As a part of the treatment process, discrete particles are required to be settled in a clarifier. A column test indicates that an overflow rate of $1.5 m$ per hour would produce the desired removal of particles through settling in the clarifier having a depth of $3.0 m$ . The volume of the required clarifier, (in $m^{3}$ , round off to 1 decimal place) would be 500

Discussion

2907.	What happens when magnesium oxide is dissolved in water?
Answer» What happens when magnesium oxide is dissolved in water?

Discussion

2908.	The strength in g/litre of a solution of H2SO4 if 40 ml of itneutralises 20 ml of N/10 NaOH solution is 1) 0.05 2) 4.9 3) 2.45 4) 0.5
Answer» The strength in g/litre of a solution of H2SO4 if 40 ml of itneutralises 20 ml of N/10 NaOH solution is 1) 0.05 2) 4.9 3) 2.45 4) 0.5

Discussion

2909.	Please give me exact definitions with example of base and salt .
Answer» Please give me exact definitions with example of base and salt .

Discussion

2910.	Abhishek was working in his chemistry lab. He had three test tubes containing three different solutions P, Q and R. When he added few drops of solution R to the test tube containing solution P, solution P turned pink from colorless. After this he added few drops of solution Q to the test tube containing solution P, it then became colorless again. Explain the observations and identify P, Q and R. [5 MARKS]
Answer» Abhishek was working in his chemistry lab. He had three test tubes containing three different solutions P, Q and R. When he added few drops of solution R to the test tube containing solution P, solution P turned pink from colorless. After this he added few drops of solution Q to the test tube containing solution P, it then became colorless again. Explain the observations and identify P, Q and R. [5 MARKS]

Discussion

2911.	How does the density ρb of a body determine whether a solid piece of that substance will float or sink in a given liquid of density ρL?
Answer» How does the density $ρ_{b}$ of a body determine whether a solid piece of that substance will float or sink in a given liquid of density $ρ_{L}$ ?

Discussion

2912.	44.The electronic configuration of ametal M1s2, 2s 2p, 3sThe formula of its oxides will be\lbrack MP PET/PMT 1998\rbrack(a) MO(b) M2O(e) M2O3(d) MO2
Answer» 44.The electronic configuration of ametal M1s2, 2s 2p, 3sThe formula of its oxides will be\lbrack MP PET/PMT 1998\rbrack(a) MO(b) M2O(e) M2O3(d) MO2

Discussion

2913.	what will happen if sodium reacts with hot water instead of cold water
Answer» what will happen if sodium reacts with hot water instead of cold water

Discussion

2914.	If you suffer from acidity in the stomach, the doctor gives you a medicine to relieve your discomfort. The medicine has:a. common saltb. hydrochloric acidc. sodium hydroxided. magnesium hydroxide
Answer» If you suffer from acidity in the stomach, the doctor gives you a medicine to relieve your discomfort. The medicine has: a. common salt b. hydrochloric acid c. sodium hydroxide d. magnesium hydroxide

Discussion

2915.	Explain the meaning of malleability and ductility?
Answer» Explain the meaning of malleability and ductility?

Discussion

2916.	Hello sir I want to ask you a question which is not in the byju's app it is from the chapter language of chemistry.The equation which is given below is my doubt as I can't solve it .CaCO2 +HCl= CaCl2 +CO2 +H2O
Answer» Hello sir I want to ask you a question which is not in the byju's app it is from the chapter language of chemistry. The equation which is given below is my doubt as I can't solve it . CaCO2 +HCl= CaCl2 +CO2 +H2O

2916.

Hello sir I want to ask you a question which is not in the byju's app it is from the chapter language of chemistry.The equation which is given below is my doubt as I can't solve it .CaCO2 +HCl= CaCl2 +CO2 +H2O

Answer»

Hello sir I want to ask you a question which is not in the byju's app it is from the chapter language of chemistry.

The equation which is given below is my doubt as I can't solve it .

CaCO2 +HCl= CaCl2 +CO2 +H2O

Discussion

2917.	Why is air humid during the rainy season?
Answer» Why is air humid during the rainy season?

Discussion

2918.	46.2 objects of mass 1kg and 2kg are released from rest when their separation is 10m. Only gravitational forces act on them. Find the velocity of each of them when the separation becomes 5m.
Answer» 46.2 objects of mass 1kg and 2kg are released from rest when their separation is 10m. Only gravitational forces act on them. Find the velocity of each of them when the separation becomes 5m.

Discussion

2919.	0.0005 mol of strong electrolyte, Ca(OH)2 is dissolved to form 100 mL of a saturated aqueous solution. The pH of this solution is:
Answer» $0.0005 mol$ of strong electrolyte, $C a (O H)_{2}$ is dissolved to form $100 mL$ of a saturated aqueous solution. The $p H$ of this solution is:

Discussion

2920.	Is milk a homogeneos or heterogeneous mixture? Explain.
Answer» Is milk a homogeneos or heterogeneous mixture? Explain.

Discussion

2921.	A paper is used to make a paper plane. This is a ___ change. (physical/chemical)
Answer» A paper is used to make a paper plane. This is a ___ change. (physical/chemical)

Discussion

2922.	Rearrange the jumbled letter to obtain the name of an indicator. MUSLIT ___
Answer» Rearrange the jumbled letter to obtain the name of an indicator. MUSLIT ___

2922.

Rearrange the jumbled letter to obtain the name of an indicator. MUSLIT ___

Answer»

Rearrange the jumbled letter to obtain the name of an indicator.

MUSLIT
___

Discussion

2923.	Given below is the cycle in which processing of wool is done. Complete the cycle in the following blanks. Also, explain them in brief. Shearing, Scouring, Sorting, , , . [3 MARKS]
Answer» Given below is the cycle in which processing of wool is done. Complete the cycle in the following blanks. Also, explain them in brief. Shearing, Scouring, Sorting, , , . [3 MARKS]

2923.

Given below is the cycle in which processing of wool is done. Complete the cycle in the following blanks. Also, explain them in brief. Shearing, Scouring, Sorting, , , . [3 MARKS]

Answer»

Given below is the cycle in which processing of wool is done. Complete the cycle in the following blanks. Also, explain them in brief.

Shearing, Scouring, Sorting, , , . [3 MARKS]

Discussion

2924.	Match the following: Relate physical states used in the chemical reactions to their symbols. Physical StateSymbol1.Gas(A) (dw)2.Solid(B) (g)3.Liquid(C) (aq)4.Dissolved in water(solution with water)(D) (l)(E) (s)(F) (v)
Answer» Match the following: Relate physical states used in the chemical reactions to their symbols. $\begin{matrix} P h y s i c a l S t a t e & S y m b o l 1. G a s & (A) (d w) 2. S o l i d & (B) (g) 3. L i q u i d & (C) (a q) 4. D i s s o l v e d i n w a t e r (s o l u t i o n w i t h w a t e r) & (D) (l) (E) (s) (F) (v) \end{matrix}$

2924.

Match the following: Relate physical states used in the chemical reactions to their symbols. Physical StateSymbol1.Gas(A) (dw)2.Solid(B) (g)3.Liquid(C) (aq)4.Dissolved in water(solution with water)(D) (l)(E) (s)(F) (v)

Answer»

Match the following:

Relate physical states used in the chemical reactions to their symbols.

$\begin{matrix} P h y s i c a l S t a t e & S y m b o l 1. G a s & (A) (d w) 2. S o l i d & (B) (g) 3. L i q u i d & (C) (a q) 4. D i s s o l v e d i n w a t e r (s o l u t i o n w i t h w a t e r) & (D) (l) (E) (s) (F) (v) \end{matrix}$

Discussion

2925.	Mettez le dialogue en ordre. Amuse-toi! Je vais à Paris avec ma famille. Merci beaucoup. C'est génial! Où restes-tu à Paris? Où vas-tu pendant les vacances? Je reste chez mon oncle.
Answer» Mettez le dialogue en ordre. Amuse-toi! Je vais à Paris avec ma famille. Merci beaucoup. C'est génial! Où restes-tu à Paris? Où vas-tu pendant les vacances? Je reste chez mon oncle.

Discussion

2926.	Question 11Electrolysis of water is a decomposition reaction. The mole ratio of hydrogen and oxygen gases liberated during electrolysis of water is(a) 1:1(b) 2:1(c) 4:1(d) 1:2
Answer» Question 11 Electrolysis of water is a decomposition reaction. The mole ratio of hydrogen and oxygen gases liberated during electrolysis of water is (a) 1:1 (b) 2:1 (c) 4:1 (d) 1:2

Discussion

2927.	Balance between oxygen and carbon dioxide in atmosphere is depicted by the following figure. Match the numbers with the correct gas name.
Answer» Balance between oxygen and carbon dioxide in atmosphere is depicted by the following figure. Match the numbers with the correct gas name.

2927.

Balance between oxygen and carbon dioxide in atmosphere is depicted by the following figure. Match the numbers with the correct gas name.

Answer»

Balance between oxygen and carbon dioxide in atmosphere is depicted by the following figure. Match the numbers with the correct gas name.

Discussion

2928.	Find the change in standard gibb's free energy (ΔG∘) for the following reaction.2Cu+→Cu+Cu2+(Given : E∘Cu+/Cu=0.52 V, E∘Cu2+/Cu+=0.16 V)
Answer» Find the change in standard gibb's free energy $(Δ G^{\circ})$ for the following reaction. $2 C u^{+} \to C u + C u^{2 +}$ (Given : $E_{C u^{+} / C u}^{\circ} = 0.52 V, E_{C u^{2 +} / C u^{+}}^{\circ} = 0.16 V$ )

Discussion

2929.	In the figures given , identify the one(s) representing a heterogeneous mixture?
Answer» In the figures given , identify the one(s) representing a heterogeneous mixture?

2929.

In the figures given , identify the one(s) representing a heterogeneous mixture?

Answer»

In the figures given , identify the one(s) representing a heterogeneous mixture?

Discussion

2930.	Why are atoms stable?
Answer» Why are atoms stable?

Discussion

2931.	Question 11Which of the following are chemical changes? a. Growth of a plantb. Rusting of ironc. Mixing of iron filings and sandd. Cooking of foode. Digestion of foodf. Freezing of waterg. Burning of a candle
Answer» Question 11 Which of the following are chemical changes? a. Growth of a plant b. Rusting of iron c. Mixing of iron filings and sand d. Cooking of food e. Digestion of food f. Freezing of water g. Burning of a candle

Discussion

2932.	12.976g of lead combines 2ith 2.004g of oxygen to form lead oxide. Lead oxide can also prpduce by heating lead nitrate and it was found that %age of oxygen present in lead oxide is 13.38%.with the helf of given imf. Illustrate law of constant proportion
Answer» 12.976g of lead combines 2ith 2.004g of oxygen to form lead oxide. Lead oxide can also prpduce by heating lead nitrate and it was found that %age of oxygen present in lead oxide is 13.38%.with the helf of given imf. Illustrate law of constant proportion

Discussion

2933.	1) what is difference between combustion and burning?
Answer» 1) what is difference between combustion and burning?

Discussion

2934.	When potassium permanganate is heated strongly, oxygen gas is liberated. Suggest a method to identify oxygen gas?
Answer» When potassium permanganate is heated strongly, oxygen gas is liberated. Suggest a method to identify oxygen gas?

Discussion

2935.	When X gas is passed through lime water, it turns milky. The milkiness is caused due to the formation of Y. Identify X and Y from the following.
Answer» When X gas is passed through lime water, it turns milky. The milkiness is caused due to the formation of Y. Identify X and Y from the following.

Discussion

2936.	What is galvanic cell?What is agar agar electrode and salt brigde?why we cannot calculate the general equivalent weight of KMnO⁴ as M/1 ,M=Molar Mass but we take its n factor which isn't equal to zero.Why we cannot find its equivalent weight by salt dissociation method in form of K+ and MnO4-.
Answer» What is galvanic cell?What is agar agar electrode and salt brigde?why we cannot calculate the general equivalent weight of KMnO⁴ as M/1 ,M=Molar Mass but we take its n factor which isn't equal to zero.Why we cannot find its equivalent weight by salt dissociation method in form of K+ and MnO4-.

Discussion

2937.	What are the methods used to speed up the rate of dissolving?
Answer» What are the methods used to speed up the rate of dissolving?

Discussion

2938.	Give an example to explain the difference between changes that can or cannot be reversed.
Answer» Give an example to explain the difference between changes that can or cannot be reversed.

Discussion

2939.	Incomplete burning of natural gas majorly produces __ , which is a poisonous gas.
Answer» Incomplete burning of natural gas majorly produces __ , which is a poisonous gas.

Discussion

2940.	The value of compression factor at the critical state of a vander waals gas is
Answer» The value of compression factor at the critical state of a vander waals gas is

Discussion

2941.	Ammonia is found in many household products, such as window cleaners. It turns red litmus to blue. What is its nature?
Answer» Ammonia is found in many household products, such as window cleaners. It turns red litmus to blue. What is its nature?

Discussion

2942.	What is the role of the acid in our stomach?
Answer» What is the role of the acid in our stomach?

Discussion

2943.	21. What is the difference between ( mvr= nh/2π) and ( mvr= \sqrt{}l(l+1 ) h/2π)
Answer» 21. What is the difference between ( mvr= nh/2π) and ( mvr= \sqrt{}l(l+1 ) h/2π)

Discussion

2944.	Consider the circuit given below.Assume the diode is ideal. The average current passing through the resistor R is found to be 2mA. Then the value of resistance R is equal to________kΩ1.31
Answer» Consider the circuit given below. Assume the diode is ideal. The average current passing through the resistor R is found to be 2mA. Then the value of resistance R is equal to________ $k Ω$ 1.31

Discussion

2945.	Indian runner ducks lay about_______ eggs annually.
Answer» Indian runner ducks lay about_______ eggs annually.

Discussion

2946.	The formula of aluminum oxide is Al2O3. If aluminium forms its chloride, what will be the formula of that compound?
Answer» The formula of aluminum oxide is Al₂O₃. If aluminium forms its chloride, what will be the formula of that compound?

Discussion

2947.	definition of galvanization
Answer» definition of galvanization

Discussion

2948.	On analysis it was found that FeS contains 36.47% of sulphur . How much FeS will be obtained on heating a mixture of 1.0 g of Fe and 2.0g of S? How much sulphur remains in decomposed?
Answer» On analysis it was found that FeS contains 36.47% of sulphur . How much FeS will be obtained on heating a mixture of 1.0 g of Fe and 2.0g of S? How much sulphur remains in decomposed?

Discussion

2949.	Green plants is used in what
Answer» Green plants is used in what

Discussion

2950.

Find out the wrong pair from the following table: Mulberry plantsSilk wormSelf-pollinationHoney beeSeed dispersal and germinationDigestive system of the birdsBio – fuelsJatropha

Answer»

Find out the wrong pair from the following table:

Mulberry plants	Silk worm
Self-pollination	Honey bee
Seed dispersal and germination	Digestive system of the birds
Bio – fuels	Jatropha

Discussion

Explore topic-wise InterviewSolutions in .

A simple pendulum takes 32s to complete 20 oscillations. What is the time period of the pendulum?

If the value of an equilibrium cons†an t for a particular reaction is 1.6 × 1012, then at equilibrium the system will contain

The problems associated with wastewater are:

Question 6Explain circumstances leading to acid rain. How does acid rain affect us?

The positively charged and negatively charged ions are called _______ and _______.

What happens when magnesium oxide is dissolved in water?

The strength in g/litre of a solution of H2SO4 if 40 ml of itneutralises 20 ml of N/10 NaOH solution is 1) 0.05 2) 4.9 3) 2.45 4) 0.5

Please give me exact definitions with example of base and salt .

How does the density ρb of a body determine whether a solid piece of that substance will float or sink in a given liquid of density ρL?

44.The electronic configuration of ametal M1s2, 2s 2p, 3sThe formula of its oxides will be\lbrack MP PET/PMT 1998\rbrack(a) MO(b) M2O(e) M2O3(d) MO2

what will happen if sodium reacts with hot water instead of cold water

If you suffer from acidity in the stomach, the doctor gives you a medicine to relieve your discomfort. The medicine has:a. common saltb. hydrochloric acidc. sodium hydroxided. magnesium hydroxide

Explain the meaning of malleability and ductility?

Hello sir I want to ask you a question which is not in the byju's app it is from the chapter language of chemistry.The equation which is given below is my doubt as I can't solve it .CaCO2 +HCl= CaCl2 +CO2 +H2O

Why is air humid during the rainy season?

46.2 objects of mass 1kg and 2kg are released from rest when their separation is 10m. Only gravitational forces act on them. Find the velocity of each of them when the separation becomes 5m.

0.0005 mol of strong electrolyte, Ca(OH)2 is dissolved to form 100 mL of a saturated aqueous solution. The pH of this solution is:

Is milk a homogeneos or heterogeneous mixture? Explain.

A paper is used to make a paper plane. This is a ___ change. (physical/chemical)

Rearrange the jumbled letter to obtain the name of an indicator. MUSLIT ___

Given below is the cycle in which processing of wool is done. Complete the cycle in the following blanks. Also, explain them in brief. Shearing, Scouring, Sorting, , , . [3 MARKS]

Match the following: Relate physical states used in the chemical reactions to their symbols. Physical StateSymbol1.Gas(A) (dw)2.Solid(B) (g)3.Liquid(C) (aq)4.Dissolved in water(solution with water)(D) (l)(E) (s)(F) (v)

Mettez le dialogue en ordre. Amuse-toi! Je vais à Paris avec ma famille. Merci beaucoup. C'est génial! Où restes-tu à Paris? Où vas-tu pendant les vacances? Je reste chez mon oncle.

Question 11Electrolysis of water is a decomposition reaction. The mole ratio of hydrogen and oxygen gases liberated during electrolysis of water is(a) 1:1(b) 2:1(c) 4:1(d) 1:2

Balance between oxygen and carbon dioxide in atmosphere is depicted by the following figure. Match the numbers with the correct gas name.

Find the change in standard gibb's free energy (ΔG∘) for the following reaction.2Cu+→Cu+Cu2+(Given : E∘Cu+/Cu=0.52 V, E∘Cu2+/Cu+=0.16 V)

In the figures given , identify the one(s) representing a heterogeneous mixture?

Why are atoms stable?

Question 11Which of the following are chemical changes? a. Growth of a plantb. Rusting of ironc. Mixing of iron filings and sandd. Cooking of foode. Digestion of foodf. Freezing of waterg. Burning of a candle

12.976g of lead combines 2ith 2.004g of oxygen to form lead oxide. Lead oxide can also prpduce by heating lead nitrate and it was found that %age of oxygen present in lead oxide is 13.38%.with the helf of given imf. Illustrate law of constant proportion

1) what is difference between combustion and burning?

When potassium permanganate is heated strongly, oxygen gas is liberated. Suggest a method to identify oxygen gas?

When X gas is passed through lime water, it turns milky. The milkiness is caused due to the formation of Y. Identify X and Y from the following.

What is galvanic cell?What is agar agar electrode and salt brigde?why we cannot calculate the general equivalent weight of KMnO⁴ as M/1 ,M=Molar Mass but we take its n factor which isn't equal to zero.Why we cannot find its equivalent weight by salt dissociation method in form of K+ and MnO4-.

What are the methods used to speed up the rate of dissolving?

Give an example to explain the difference between changes that can or cannot be reversed.

Incomplete burning of natural gas majorly produces __ , which is a poisonous gas.

The value of compression factor at the critical state of a vander waals gas is

Ammonia is found in many household products, such as window cleaners. It turns red litmus to blue. What is its nature?

What is the role of the acid in our stomach?

21. What is the difference between ( mvr= nh/2π) and ( mvr= \sqrt{}l(l+1 ) h/2π)

Consider the circuit given below.Assume the diode is ideal. The average current passing through the resistor R is found to be 2mA. Then the value of resistance R is equal to________kΩ1.31

Indian runner ducks lay about_______ eggs annually.

The formula of aluminum oxide is Al2O3. If aluminium forms its chloride, what will be the formula of that compound?

definition of galvanization

On analysis it was found that FeS contains 36.47% of sulphur . How much FeS will be obtained on heating a mixture of 1.0 g of Fe and 2.0g of S? How much sulphur remains in decomposed?

Green plants is used in what

Find out the wrong pair from the following table: Mulberry plantsSilk wormSelf-pollinationHoney beeSeed dispersal and germinationDigestive system of the birdsBio – fuelsJatropha

The positively charged and negatively charged ions are called _ and _.