5083 + Interview Questions in Chemistry Page 9 InterviewSolution

401.	The rate of transpiration increases by an increase in the
Answer» The rate of transpiration increases by an increase in the

Discussion

402.	Which of the following soil is the best for plant growth?
Answer» Which of the following soil is the best for plant growth?

Discussion

403.	Fill in the blanks. (a) The main constituent of an acid is ………… (b) The main constituent of a base is ………… (c) Tartaric acid is a ………… acid. (d) To get acidic salts ………… acids are used.
Answer» Fill in the blanks. (a) The main constituent of an acid is ………… (b) The main constituent of a base is ………… (c) Tartaric acid is a ………… acid. (d) To get acidic salts ………… acids are used.

403.

Fill in the blanks. (a) The main constituent of an acid is ………… (b) The main constituent of a base is ………… (c) Tartaric acid is a ………… acid. (d) To get acidic salts ………… acids are used.

Answer»

Fill in the blanks.

(a) The main constituent of an acid is …………

(b) The main constituent of a base is …………

(c) Tartaric acid is a ………… acid.

(d) To get acidic salts ………… acids are used.

Discussion

404.	The process of washing the sheared hair of the sheep is known as ___.
Answer» The process of washing the sheared hair of the sheep is known as ___.

Discussion

405.	Chanakya on his way home saw a farmer digging the soil. He observed that the digging tool had an iron blade fixed to a wooden handle. He wondered how the iron blade gets fixed to a wooden handle even when the iron ring is smaller than a wooden handle. What do you think can be the way to do this?
Answer» Chanakya on his way home saw a farmer digging the soil. He observed that the digging tool had an iron blade fixed to a wooden handle. He wondered how the iron blade gets fixed to a wooden handle even when the iron ring is smaller than a wooden handle. What do you think can be the way to do this?

405.

Chanakya on his way home saw a farmer digging the soil. He observed that the digging tool had an iron blade fixed to a wooden handle. He wondered how the iron blade gets fixed to a wooden handle even when the iron ring is smaller than a wooden handle. What do you think can be the way to do this?

Answer»

Chanakya on his way home saw a farmer digging the soil. He observed that the digging tool had an iron blade fixed to a wooden handle. He wondered how the iron blade gets fixed to a wooden handle even when the iron ring is smaller than a wooden handle. What do you think can be the way to do this?

Discussion

406.	Question 10 Silkworms secrete fibre made of (a) fat (b) cellulose (c) protein (d) nylon
Answer» Question 10 Silkworms secrete fibre made of (a) fat (b) cellulose (c) protein (d) nylon

406.

Question 10 Silkworms secrete fibre made of (a) fat (b) cellulose (c) protein (d) nylon

Answer»

Question 10

Silkworms secrete fibre made of
(a) fat
(b) cellulose
(c) protein
(d) nylon

Discussion

407.	In equilibrium N2(g)+ O2(g)→ 2NO(g), Kc= 10^-40. Initially 0.4 mole of N2 and 0.9 mole of O2 were mixed, then what are the moles of N2, O2 and NO at equilibrium ?
Answer» In equilibrium N2(g)+ O2(g)→ 2NO(g), Kc= 10^-40. Initially 0.4 mole of N2 and 0.9 mole of O2 were mixed, then what are the moles of N2, O2 and NO at equilibrium ?

Discussion

408.	The maximum current can be drawn from which of the following cells?
Answer» The maximum current can be drawn from which of the following cells?

Discussion

409.	Barium chloride on reacting with sodium sulphate forms barium sulphate and sodium chloride. Which of the following is the precipitate?
Answer» Barium chloride on reacting with sodium sulphate forms barium sulphate and sodium chloride. Which of the following is the precipitate?

Discussion

410.	1.Which color does phenolphthalein changes when reacted with acid and base 2. Why do fire brigade men often use shiny brass caps ( sir / Ma'am, for this question plz give definition which i ican write in exam. Because tomorrow is my exam.
Answer» 1.Which color does phenolphthalein changes when reacted with acid and base 2. Why do fire brigade men often use shiny brass caps ( sir / Ma'am, for this question plz give definition which i ican write in exam. Because tomorrow is my exam.

Discussion

411.	A bullet of mass 2 g is having a charge of 2 μ C. Through what potential difference must it be accelerated starting from rest to acquire a speed of 10 ms−1 ?
Answer» A bullet of mass $2 g$ is having a charge of $2 μ C$ . Through what potential difference must it be accelerated starting from rest to acquire a speed of $10 {ms}^{- 1}$ ?

Discussion

412.	What is neutral solution
Answer» What is neutral solution

Discussion

413.	28. In a zero order reaction for every 10^° rise in temperature the rate is doubled.if temperature is increased from 10^° C to 100^° C the rate of reaction will become
Answer» 28. In a zero order reaction for every 10^° rise in temperature the rate is doubled.if temperature is increased from 10^° C to 100^° C the rate of reaction will become

Discussion

414.	6. Why sodium and potassium are stored in kerosene while phosphorus is stored in water
Answer» 6. Why sodium and potassium are stored in kerosene while phosphorus is stored in water

Discussion

415.	How does the anomalous expansion of water help aquatic life?
Answer» How does the anomalous expansion of water help aquatic life?

Discussion

416.	Which precipitate is formed when ferric chloride reacts with caustic soda?[1 mark]
Answer» Which precipitate is formed when ferric chloride reacts with caustic soda? [1 mark]

Discussion

417.	How to do repeated subtraction
Answer» How to do repeated subtraction

Discussion

418.	Rapid tooth decay throughout the mouth is known as _______
Answer» Rapid tooth decay throughout the mouth is known as _______

Discussion

419.	56 In a reaction A + 2B =2C 2 moles of A 3 moles of B and 2 moles of C are placed in a 2L flask. The equilibrium concentration of C is 0.5 mol/L. The equilibrium constant is
Answer» 56 In a reaction A + 2B =2C 2 moles of A 3 moles of B and 2 moles of C are placed in a 2L flask. The equilibrium concentration of C is 0.5 mol/L. The equilibrium constant is

Discussion

420.	The decomposition of vegetable matter into compost is an example of _____.
Answer» The decomposition of vegetable matter into compost is an example of _____.

Discussion

421.	Chemical formula of metal sulfate is MSO4. What will be the formula of its chloride?
Answer» Chemical formula of metal sulfate is $M S O_{4}$ . What will be the formula of its chloride?

Discussion

422.	Scouring is done after
Answer» Scouring is done after

Discussion

423.	Name the acid in our stomach which helps in digestion? What is the cause and remedy of acidity? [3 MARKS]
Answer» Name the acid in our stomach which helps in digestion? What is the cause and remedy of acidity? [3 MARKS]

Discussion

424.	29. 10 mL of a solution of NaOH is found to be completely neutralised by 8mL of a given solution of HCl .If we take 20mL of the same solution of NaOH the amount of HCl solution( the same solution as before) required to neutralise it will be?
Answer» 29. 10 mL of a solution of NaOH is found to be completely neutralised by 8mL of a given solution of HCl .If we take 20mL of the same solution of NaOH the amount of HCl solution( the same solution as before) required to neutralise it will be?

Discussion

425.	23.on heating g of hydrogen Bacl2 to dryness ,1.505 g of anhydrous salt remind. hence the formula of the hydaret is (atomic Wight Ba 137)
Answer» 23.on heating g of hydrogen Bacl2 to dryness ,1.505 g of anhydrous salt remind. hence the formula of the hydaret is (atomic Wight Ba 137)

Discussion

426.	9. At 300k the solution which is isotonic with .02M solutions of MgCl2 is (Assume complete dissociation of electrolytes)
Answer» 9. At 300k the solution which is isotonic with .02M solutions of MgCl2 is (Assume complete dissociation of electrolytes)

Discussion

427.	___ is a tabular arrangement of elements in vertical columns and horizontal rows indicating the regular trends in the properties of elements.
Answer» ___ is a tabular arrangement of elements in vertical columns and horizontal rows indicating the regular trends in the properties of elements.

Discussion

428.	“Soil is alive”. Justify the statement.
Answer» “Soil is alive”. Justify the statement.

Discussion

429.	For a given reaction of nth order :A→ProductsWhen the inital concentration i.e. [A]0 was 0.96 M, the half life was found out to be 4 min. On changing the initial concentration (at constant temperature) to 0.64 M, half life period changes to 9 min.The overall order of the reaction is:
Answer» For a given reaction of $n^{t h}$ order : $A \to Products$ When the inital concentration i.e. $[A]_{0}$ was $0.96 M$ , the half life was found out to be $4 m i n$ . On changing the initial concentration (at constant temperature) to $0.64 M$ , half life period changes to $9 m i n$ . The overall order of the reaction is:

Discussion

430.	Washing soda has the formula
Answer» Washing soda has the formula

Discussion

431.	What are the amorphous allotropes of carbon?
Answer» What are the amorphous allotropes of carbon?

Discussion

432.	Identify the type(s) of matter that is/are considered as fluids.
Answer» Identify the type(s) of matter that is/are considered as fluids.

Discussion

433.	Which of these is a way to control air pollution?
Answer» Which of these is a way to control air pollution?

Discussion

434.	which among the given pairs does not have identical bond order o2 2- and F2 N2 and COCO and NON2 and NO+
Answer» which among the given pairs does not have identical bond order o2 2- and F2 N2 and CO CO and NO N2 and NO+

Discussion

435.	A non metal forms only two oxides.One oxide on hydrolysis give an acid.Identify the non metal.
Answer» A non metal forms only two oxides.One oxide on hydrolysis give an acid.Identify the non metal.

Discussion

436.	Why are 🐑took to an antiseptic after shearing
Answer» Why are 🐑took to an antiseptic after shearing

Discussion

437.	4. The correct order of emf value with negative sign for the four successive elements Cr,Mn, Fe, and Co is A) Cr Mn Fe Co B) Mn Cr Fe Co C) Cr Fe Mn Co D) Fe Mn Cr Co
Answer» 4. The correct order of emf value with negative sign for the four successive elements Cr,Mn, Fe, and Co is A) Cr Mn Fe Co B) Mn Cr Fe Co C) Cr Fe Mn Co D) Fe Mn Cr Co

Discussion

438.	What is needed for photosynthesis in which carbon dioxide and water react in the presence of chlorophyll to produce glucose and oxygen?
Answer» What is needed for photosynthesis in which carbon dioxide and water react in the presence of chlorophyll to produce glucose and oxygen?

Discussion

439.	In a physical change, which of the following takes place?(i) No new substance is formed.(ii) The change is reversible(iii) The change is temporary
Answer» In a physical change, which of the following takes place? (i) No new substance is formed. (ii) The change is reversible (iii) The change is temporary

Discussion

440.	Question 9:The label on the bottle of chemicals is spoiled. How will you find whether the chemical is acidic or not?
Answer» Question 9: The label on the bottle of chemicals is spoiled. How will you find whether the chemical is acidic or not?

440.

Question 9:The label on the bottle of chemicals is spoiled. How will you find whether the chemical is acidic or not?

Answer»

Question 9:

The label on the bottle of chemicals is spoiled. How will you find whether the chemical is acidic or not?

Discussion

441.	Impure compounds of copper sulphate or salt from sea water can be purified using the method called:
Answer» Impure compounds of copper sulphate or salt from sea water can be purified using the method called:

Discussion

442.	EMF of hydrogen electrode in term of pH at 25oC is
Answer» EMF of hydrogen electrode in term of $p H$ at $25^{o} C$ is

Discussion

443.	When the state of a substance is written in brackets in a chemical reaction, “aq” stands for ___
Answer» When the state of a substance is written in brackets in a chemical reaction, “aq” stands for ___

Discussion

444.	Appu thought that when he washed his woolens in water, there would always be tiny ball like burrs coming out on top of the clothes. He wondered how his new woolen sweaters never had any burrs even though the fleeces were washed in water. He mentioned his suspicion to the farmer. The farmer said “The burrs do appear on the wool. But, they are removed using a process called ____________________”. He showed some hand cards used for the process. It had tiny teeth that could remove burrs. The farmer added “of course…nowadays this is done using machines …”
Answer» Appu thought that when he washed his woolens in water, there would always be tiny ball like burrs coming out on top of the clothes. He wondered how his new woolen sweaters never had any burrs even though the fleeces were washed in water. He mentioned his suspicion to the farmer. The farmer said “The burrs do appear on the wool. But, they are removed using a process called ____________________”. He showed some hand cards used for the process. It had tiny teeth that could remove burrs. The farmer added “of course…nowadays this is done using machines …”

444.

Appu thought that when he washed his woolens in water, there would always be tiny ball like burrs coming out on top of the clothes. He wondered how his new woolen sweaters never had any burrs even though the fleeces were washed in water. He mentioned his suspicion to the farmer. The farmer said “The burrs do appear on the wool. But, they are removed using a process called ____________________”. He showed some hand cards used for the process. It had tiny teeth that could remove burrs. The farmer added “of course…nowadays this is done using machines …”

Answer»

Appu thought that when he washed his woolens in water, there would always be tiny ball like burrs coming out on top of the clothes. He wondered how his new woolen sweaters never had any burrs even though the fleeces were washed in water. He mentioned his suspicion to the farmer.

The farmer said “The burrs do appear on the wool. But, they are removed using a process called ____________________”. He showed some hand cards used for the process. It had tiny teeth that could remove burrs. The farmer added “of course…nowadays this is done using machines …”

Discussion

445.	State the characteristics of synthetic fibres.
Answer» State the characteristics of synthetic fibres.

Discussion

446.	Look at the table given below and fill in the blanks with correct word(s). [3 MARKS] PropertiesAcidBaseRed Litmus(i)_____Turns to blueTasteSour(ii)_____Extract of red cabbage(iii)_____Turns to greenish color
Answer» Look at the table given below and fill in the blanks with correct word(s). [3 MARKS] $\begin{matrix} Properties & Acid & Base Red Litmus & (i)_____ & Turns to blue Taste & Sour & (ii)_____Extract of red cabbage & (iii)_____ & Turns to greenish color \end{matrix}$

446.

Look at the table given below and fill in the blanks with correct word(s). [3 MARKS] PropertiesAcidBaseRed Litmus(i)___Turns to blueTasteSour(ii)_Extract of red cabbage(iii)___Turns to greenish color

Answer»

Look at the table given below and fill in the blanks with correct word(s). [3 MARKS]

$\begin{matrix} Properties & Acid & Base Red Litmus & (i)_____ & Turns to blue Taste & Sour & (ii)_____Extract of red cabbage & (iii)_____ & Turns to greenish color \end{matrix}$

Discussion

447.	Question 18.Which of the following substances will not give carbon dioxide on treatment with dilute acid?(a) Marble(b) Limestone(c) Baking soda(d) Lime
Answer» Question 18. Which of the following substances will not give carbon dioxide on treatment with dilute acid? (a) Marble (b) Limestone (c) Baking soda (d) Lime

Discussion

448.	Question 12 State whether the following statements are True or False. In case a statement is false, write the correct statement. 1. Sewage is a solid waste which causes water pollution and soil pollution. 2. Used water is wastewater. 3. Wastewater could be reused. 4. Where underground sewerage systems and refuse disposal systems are not available, the high-cost onsite sanitation system can be adopted.
Answer» Question 12 State whether the following statements are True or False. In case a statement is false, write the correct statement. 1. Sewage is a solid waste which causes water pollution and soil pollution. 2. Used water is wastewater. 3. Wastewater could be reused. 4. Where underground sewerage systems and refuse disposal systems are not available, the high-cost onsite sanitation system can be adopted.

448.

Question 12 State whether the following statements are True or False. In case a statement is false, write the correct statement. 1. Sewage is a solid waste which causes water pollution and soil pollution. 2. Used water is wastewater. 3. Wastewater could be reused. 4. Where underground sewerage systems and refuse disposal systems are not available, the high-cost onsite sanitation system can be adopted.

Answer»

Question 12

State whether the following statements are True or False. In case a statement is false, write the correct statement.
1. Sewage is a solid waste which causes water pollution and soil pollution.
2. Used water is wastewater.
3. Wastewater could be reused.
4. Where underground sewerage systems and refuse disposal systems are not available, the high-cost onsite sanitation system can be adopted.

Discussion

449.	If Oxygen gas is bubbled through water at 293 k calculate milli moles of Oxygen gas which would dissolve in 10 mole of water at Oxygen gas pressure of 0.5 ATM
Answer» If Oxygen gas is bubbled through water at 293 k calculate milli moles of Oxygen gas which would dissolve in 10 mole of water at Oxygen gas pressure of 0.5 ATM

Discussion

450.	Why is the changing of seasons a periodic change?
Answer» Why is the changing of seasons a periodic change?

Discussion

Explore topic-wise InterviewSolutions in .

The rate of transpiration increases by an increase in the

Which of the following soil is the best for plant growth?

Fill in the blanks. (a) The main constituent of an acid is ………… (b) The main constituent of a base is ………… (c) Tartaric acid is a ………… acid. (d) To get acidic salts ………… acids are used.

The process of washing the sheared hair of the sheep is known as ___.

Chanakya on his way home saw a farmer digging the soil. He observed that the digging tool had an iron blade fixed to a wooden handle. He wondered how the iron blade gets fixed to a wooden handle even when the iron ring is smaller than a wooden handle. What do you think can be the way to do this?

Question 10 Silkworms secrete fibre made of (a) fat (b) cellulose (c) protein (d) nylon

In equilibrium N2(g)+ O2(g)→ 2NO(g), Kc= 10^-40. Initially 0.4 mole of N2 and 0.9 mole of O2 were mixed, then what are the moles of N2, O2 and NO at equilibrium ?

The maximum current can be drawn from which of the following cells?

Barium chloride on reacting with sodium sulphate forms barium sulphate and sodium chloride. Which of the following is the precipitate?

1.Which color does phenolphthalein changes when reacted with acid and base 2. Why do fire brigade men often use shiny brass caps ( sir / Ma'am, for this question plz give definition which i ican write in exam. Because tomorrow is my exam.

A bullet of mass 2 g is having a charge of 2 μ C. Through what potential difference must it be accelerated starting from rest to acquire a speed of 10 ms−1 ?

What is neutral solution

28. In a zero order reaction for every 10^° rise in temperature the rate is doubled.if temperature is increased from 10^° C to 100^° C the rate of reaction will become

6. Why sodium and potassium are stored in kerosene while phosphorus is stored in water

How does the anomalous expansion of water help aquatic life?

Which precipitate is formed when ferric chloride reacts with caustic soda?[1 mark]

How to do repeated subtraction

Rapid tooth decay throughout the mouth is known as _______

56 In a reaction A + 2B =2C 2 moles of A 3 moles of B and 2 moles of C are placed in a 2L flask. The equilibrium concentration of C is 0.5 mol/L. The equilibrium constant is

The decomposition of vegetable matter into compost is an example of _____.

Chemical formula of metal sulfate is MSO4. What will be the formula of its chloride?

Scouring is done after

Name the acid in our stomach which helps in digestion? What is the cause and remedy of acidity? [3 MARKS]

29. 10 mL of a solution of NaOH is found to be completely neutralised by 8mL of a given solution of HCl .If we take 20mL of the same solution of NaOH the amount of HCl solution( the same solution as before) required to neutralise it will be?

23.on heating g of hydrogen Bacl2 to dryness ,1.505 g of anhydrous salt remind. hence the formula of the hydaret is (atomic Wight Ba 137)

9. At 300k the solution which is isotonic with .02M solutions of MgCl2 is (Assume complete dissociation of electrolytes)

___ is a tabular arrangement of elements in vertical columns and horizontal rows indicating the regular trends in the properties of elements.

“Soil is alive”. Justify the statement.

For a given reaction of nth order :A→ProductsWhen the inital concentration i.e. [A]0 was 0.96 M, the half life was found out to be 4 min. On changing the initial concentration (at constant temperature) to 0.64 M, half life period changes to 9 min.The overall order of the reaction is:

Washing soda has the formula

What are the amorphous allotropes of carbon?

Identify the type(s) of matter that is/are considered as fluids.

Which of these is a way to control air pollution?

which among the given pairs does not have identical bond order o2 2- and F2 N2 and COCO and NON2 and NO+

A non metal forms only two oxides.One oxide on hydrolysis give an acid.Identify the non metal.

Why are 🐑took to an antiseptic after shearing

4. The correct order of emf value with negative sign for the four successive elements Cr,Mn, Fe, and Co is A) Cr Mn Fe Co B) Mn Cr Fe Co C) Cr Fe Mn Co D) Fe Mn Cr Co

What is needed for photosynthesis in which carbon dioxide and water react in the presence of chlorophyll to produce glucose and oxygen?

In a physical change, which of the following takes place?(i) No new substance is formed.(ii) The change is reversible(iii) The change is temporary

Question 9:The label on the bottle of chemicals is spoiled. How will you find whether the chemical is acidic or not?

Impure compounds of copper sulphate or salt from sea water can be purified using the method called:

EMF of hydrogen electrode in term of pH at 25oC is

When the state of a substance is written in brackets in a chemical reaction, “aq” stands for ___

State the characteristics of synthetic fibres.

Look at the table given below and fill in the blanks with correct word(s). [3 MARKS] PropertiesAcidBaseRed Litmus(i)_____Turns to blueTasteSour(ii)_____Extract of red cabbage(iii)_____Turns to greenish color

Question 18.Which of the following substances will not give carbon dioxide on treatment with dilute acid?(a) Marble(b) Limestone(c) Baking soda(d) Lime

If Oxygen gas is bubbled through water at 293 k calculate milli moles of Oxygen gas which would dissolve in 10 mole of water at Oxygen gas pressure of 0.5 ATM

Why is the changing of seasons a periodic change?

Look at the table given below and fill in the blanks with correct word(s). [3 MARKS] PropertiesAcidBaseRed Litmus(i)___Turns to blueTasteSour(ii)_Extract of red cabbage(iii)___Turns to greenish color