10223 + Interview Questions in Chemistry Page 14 InterviewSolution

651.	इसतसवीरमेंतुम्हारीपहलीनज़रकहाँजातीहै?
Answer» इस तसवीर में तुम्हारी पहली नज़र कहाँ जाती है?

651.

इसतसवीरमेंतुम्हारीपहलीनज़रकहाँजातीहै?

Answer»

इस
तसवीर
में
तुम्हारी
पहली
नज़र
कहाँ
जाती
है?

652.	"The law of definite proportion is only for single compound"- What is Single compound?
Answer» "The law of definite proportion is only for single compound"- What is Single compound?

Discussion

653.	Where did the extra cation come from, in non stoichometric defect, to be specific metal excess one
Answer» Where did the extra cation come from, in non stoichometric defect, to be specific metal excess one

Discussion

654.	Which non-metal is used to disinfect water?
Answer» Which non-metal is used to disinfect water?

Discussion

655.	A gas consisting of rigid diatomic molecules is expanded adibatically. How mant times has the gas to be expanded to reduce the r.m.s. velocity of the molecule to 2/3rd of its initial value?
Answer» A gas consisting of rigid diatomic molecules is expanded adibatically. How mant times has the gas to be expanded to reduce the r.m.s. velocity of the molecule to 2/3rd of its initial value?

Discussion

656.	Shown below is the electrolysis of water. Identify the electrode in which hydrogen gas will be collected.
Answer» Shown below is the electrolysis of water. Identify the electrode in which hydrogen gas will be collected.

Discussion

657.	If less amount of water is added to large amount of salt,can salt be considered as solvent and water as solute
Answer» If less amount of water is added to large amount of salt,can salt be considered as solvent and water as solute

Discussion

658.	Why are decomposition reactions called the opposite of combination reactions? Write equations for these reactions.
Answer» Why are decomposition reactions called the opposite of combination reactions? Write equations for these reactions.

Discussion

659.	Which method is employed in the separation of potassium nitrate and common salt?
Answer» Which method is employed in the separation of potassium nitrate and common salt?

Discussion

660.	SiO2 reacts with:
Answer» $S i O_{2}$ reacts with:

Discussion

661.	What is the maximum number of electrons that can be accommodated in the M shell of an atom?
Answer» What is the maximum number of electrons that can be accommodated in the M shell of an atom?

Discussion

662.	Write the steps in deducing the chemical formulae of the following compounds.Sodium sulphate, potassium nitrate, ferric phosphate, calcium oxide, aluminium hydroxide
Answer» Write the steps in deducing the chemical formulae of the following compounds. Sodium sulphate, potassium nitrate, ferric phosphate, calcium oxide, aluminium hydroxide

Discussion

663.	From the ground state electronic configuration of the elements given below, which has the highest value of second ionization energy?
Answer» From the ground state electronic configuration of the elements given below, which has the highest value of second ionization energy?

Discussion

664.	Which of the following allotropes of carbon are conductors of electricity?
Answer» Which of the following allotropes of carbon are conductors of electricity?

Discussion

665.	A patient has a cholesterol level of 232 mg/L. What is the molarity of cholesterol in this patient's blood if the molar mass of cholesterol is 386.64 g/mol?
Answer» A patient has a cholesterol level of $232 mg/L$ . What is the molarity of cholesterol in this patient's blood if the molar mass of cholesterol is $386.64 g/mol$ ?

Discussion

666.	14.During an adiabatic process, the pressure of a gasis found to be proportional to the square of itsabsolute temperature. The y for the gas is(2) 5/4(3) 7/52
Answer» 14.During an adiabatic process, the pressure of a gasis found to be proportional to the square of itsabsolute temperature. The y for the gas is(2) 5/4(3) 7/52

Discussion

667.	S.I unit of matter
Answer» S.I unit of matter

Discussion

668.	Give the mechanism of the action of carbon monoxide.
Answer» Give the mechanism of the action of carbon monoxide.

Discussion

669.	Calculate the weight of CO having same number of oxygen atoms as present in 88g of CO2 ?
Answer» Calculate the weight of CO having same number of oxygen atoms as present in 88g of $C O_{2}$ ?

Discussion

670.	The mass of one molecule of a substance is 5.32*10^-23 g. What is its molecular mass?
Answer» The mass of one molecule of a substance is 5.32*10^-23 g. What is its molecular mass?

Discussion

671.	The ratio of the difference between first and second Bohr's orbit energy to that between second and third Bohr's orbit energy for H-atom is 1/2 91/35 27/5 5/27 kindlygive detailed solution.
Answer» The ratio of the difference between first and second Bohr's orbit energy to that between second and third Bohr's orbit energy for H-atom is 1/2 91/35 27/5 5/27 kindlygive detailed solution.

Discussion

672.	34. A proton is released from 10cm from a large sheet carrying a surface density
Answer» 34. A proton is released from 10cm from a large sheet carrying a surface density

Discussion

673.	Write the electronic configuration of Oxygen, Chlorine and Sodium according to the Bohr-Bury Scheme.[3 MARKS]
Answer» Write the electronic configuration of Oxygen, Chlorine and Sodium according to the Bohr-Bury Scheme.[3 MARKS]

Discussion

674.	41 Primary valency of cocl3:6nh3and cocl3:5nh3
Answer» 41 Primary valency of cocl3:6nh3and cocl3:5nh3

Discussion

675.	Which theory has provided an explanation for the law of conservation of mass and the law of definite proportions?
Answer» Which theory has provided an explanation for the law of conservation of mass and the law of definite proportions?

Discussion

676.	If we increase the intermolecular force of attraction melting point of a solid
Answer» If we increase the intermolecular force of attraction melting point of a solid

Discussion

677.	For the second order reaction NO (g) + Cl2 (g) NOCl (g) + Cl (g) The value of Ea at 25oC is 8.5 x 104 J Mol and fraction of sufficient collisions is 1.2 x 10-15. The fraction of molecular collision when the temperature is raised to 35o C is
Answer» For the second order reaction NO (g) + Cl₂(g) NOCl (g) + Cl (g) The value of E_a at 25^oC is 8.5 x 10⁴ J Mol and fraction of sufficient collisions is 1.2 x 10^-15. The fraction of molecular collision when the temperature is raised to 35^o C is

677.

For the second order reaction NO (g) + Cl2 (g) NOCl (g) + Cl (g) The value of Ea at 25oC is 8.5 x 104 J Mol and fraction of sufficient collisions is 1.2 x 10-15. The fraction of molecular collision when the temperature is raised to 35o C is

Answer»

For the second order reaction
NO (g) + Cl₂(g) NOCl (g) + Cl (g)

The value of E_a at 25^oC is 8.5 x 10⁴ J Mol and fraction of sufficient collisions is 1.2 x 10^-15. The fraction of molecular collision when the temperature is raised to 35^o C is

Discussion

678.	Heavy water is-
Answer» Heavy water is-

Discussion

679.	How is carbon considered a unique element?
Answer» How is carbon considered a unique element?

Discussion

680.	निम्नलिखितप्रश्न का उत्तरदीजिए −कवयित्रीको आकाश के तारेस्नेहहीन सेक्यों प्रतीतहो रहे हैं?
Answer» निम्नलिखित प्रश्न का उत्तर दीजिए − कवयित्री को आकाश के तारे स्नेहहीन से क्यों प्रतीत हो रहे हैं?

680.

निम्नलिखितप्रश्न का उत्तरदीजिए −कवयित्रीको आकाश के तारेस्नेहहीन सेक्यों प्रतीतहो रहे हैं?

Answer»

निम्नलिखित
प्रश्न का उत्तर
दीजिए −

कवयित्री
को आकाश के तारे
स्नेहहीन से
क्यों प्रतीत
हो रहे हैं?

Discussion

681.	Acidified K2Cr2O7 oxidizes H2S to
Answer» Acidified $K_{2} C r_{2} O_{7}$ oxidizes $H_{2} S$ to

Discussion

682.	Which of the following processes is not responsible for liberation of carbon dioxide?
Answer» Which of the following processes is not responsible for liberation of carbon dioxide?

Discussion

683.	11. What is solubility? What is dissolution?
Answer» 11. What is solubility? What is dissolution?

Discussion

684.	calculate the PH of solution containing 0.98g H2SO4 in 100 mL of water
Answer» calculate the PH of solution containing 0.98g H2SO4 in 100 mL of water

Discussion

685.	If an atom of an element has 34 electrons in total and the number of valence electrons?
Answer» If an atom of an element has 34 electrons in total and the number of valence electrons?

Discussion

686.	The method that can be used to separate a liquid from a mixture of miscible liquids with different boiling points is ___________ distillation.
Answer» The method that can be used to separate a liquid from a mixture of miscible liquids with different boiling points is ___________ distillation.

Discussion

687.	Two moles of NH3 gas are introduced into a previously evacuated one litre vessel in which it partially dissociates at high temperature as 2NH3 (g)N2 (g) + 3H2 (g). At equilibrium, onemole of NH3(g) remain. The value of Kc is
Answer» Two moles of NH3 gas are introduced into a previously evacuated one litre vessel in which it partially dissociates at high temperature as 2NH3 (g)N2 (g) + 3H2 (g). At equilibrium, onemole of NH3(g) remain. The value of Kc is

Discussion

688.	The following diagram showing part of the periodic table in which atomic radii of elements of group 17 are given. Which of the following elements has the lowest atomic radii?
Answer» The following diagram showing part of the periodic table in which atomic radii of elements of group 17 are given. Which of the following elements has the lowest atomic radii?

688.

The following diagram showing part of the periodic table in which atomic radii of elements of group 17 are given. Which of the following elements has the lowest atomic radii?

Answer»

The following diagram showing part of the periodic table in which atomic radii of elements of group 17 are given. Which of the following elements has the lowest atomic radii?

Discussion

689.	Which of the following has the highest mass?
Answer» Which of the following has the highest mass?

Discussion

690.	Discuss various uses of plastics in our everyday life.
Answer» Discuss various uses of plastics in our everyday life.

Discussion

691.	Why do glucose molecules move from aqueous medium to the organic solvent when the separating funnel is kept undisturbed? Why is the separating funnel shaken before it's kept undisturbed in the stand?
Answer» Why do glucose molecules move from aqueous medium to the organic solvent when the separating funnel is kept undisturbed? Why is the separating funnel shaken before it's kept undisturbed in the stand?

Discussion

692.	34. Can Kelvin scale have negative temperature? And why?
Answer» 34. Can Kelvin scale have negative temperature? And why?

Discussion

693.	One atom of K3919 contains: (P-proton, n-neutron and ¯e-electron)
Answer» One atom of $K_{19}^{39}$ contains: (P-proton, n-neutron and $¯ e$ -electron)

693.

One atom of K3919 contains: (P-proton, n-neutron and ¯e-electron)

Answer»

One atom of $K_{19}^{39}$ contains:

(P-proton, n-neutron and $¯ e$ -electron)

Discussion

694.	How will you separate a mixture of iron filings and sulphur powder without using carbon disulphide?
Answer» How will you separate a mixture of iron filings and sulphur powder without using carbon disulphide?

Discussion

695.	In a reaction 5.3 gram of sodium carbonate reacted with 6 team of ethanoic acid the product were 2.2 gram of carbon dioxide, 0.9 gram of water and 8.2 gram of sodium ethanoate show that these observations are in agreement with the law of conservation of mass. sodium carbonate + ethanoic acid gives sodium ethanoate+ carbon dioxide + water
Answer» In a reaction 5.3 gram of sodium carbonate reacted with 6 team of ethanoic acid the product were 2.2 gram of carbon dioxide, 0.9 gram of water and 8.2 gram of sodium ethanoate show that these observations are in agreement with the law of conservation of mass. sodium carbonate + ethanoic acid gives sodium ethanoate+ carbon dioxide + water

Discussion

696.	Differentiate between true solution and colloidal and suspension solution
Answer» Differentiate between true solution and colloidal and suspension solution

Discussion

697.	Kerosene and water can be seperated because they have different ____
Answer» Kerosene and water can be seperated because they have different ____

Discussion

698.	Which one of the following lanthanoids does not form MO2?(M = Lanthanoid element)
Answer» Which one of the following lanthanoids does not form $M O_{2} ?$ ( $M$ = Lanthanoid element)

Discussion

699.	Question 13 You must have seen tarnished copper vessels being cleaned with lemon or tamarind juice. Explain why these sour substances are effective in cleaning the vessels.
Answer» Question 13 You must have seen tarnished copper vessels being cleaned with lemon or tamarind juice. Explain why these sour substances are effective in cleaning the vessels.

Discussion

700.	Equal weight of N2 & H2 gases in a vessel have the ratio of partial pressure is
Answer» Equal weight of N2 & H2 gases in a vessel have the ratio of partial pressure is

Discussion

Explore topic-wise InterviewSolutions in .

इसतसवीरमेंतुम्हारीपहलीनज़रकहाँजातीहै?

"The law of definite proportion is only for single compound"- What is Single compound?

Where did the extra cation come from, in non stoichometric defect, to be specific metal excess one

Which non-metal is used to disinfect water?​

A gas consisting of rigid diatomic molecules is expanded adibatically. How mant times has the gas to be expanded to reduce the r.m.s. velocity of the molecule to 2/3rd of its initial value?

Shown below is the electrolysis of water. Identify the electrode in which hydrogen gas will be collected.

If less amount of water is added to large amount of salt,can salt be considered as solvent and water as solute

Why are decomposition reactions called the opposite of combination reactions? Write equations for these reactions.

Which method is employed in the separation of potassium nitrate and common salt?

SiO2 reacts with:

What is the maximum number of electrons that can be accommodated in the M shell of an atom?

Write the steps in deducing the chemical formulae of the following compounds.Sodium sulphate, potassium nitrate, ferric phosphate, calcium oxide, aluminium hydroxide

From the ground state electronic configuration of the elements given below, which has the highest value of second ionization energy?

Which of the following allotropes of carbon are conductors of electricity?

A patient has a cholesterol level of 232 mg/L. What is the molarity of cholesterol in this patient's blood if the molar mass of cholesterol is 386.64 g/mol?

14.During an adiabatic process, the pressure of a gasis found to be proportional to the square of itsabsolute temperature. The y for the gas is(2) 5/4(3) 7/52

S.I unit of matter

Give the mechanism of the action of carbon monoxide.

Calculate the weight of CO having same number of oxygen atoms as present in 88g of CO2 ?

The mass of one molecule of a substance is 5.32*10^-23 g. What is its molecular mass?

The ratio of the difference between first and second Bohr's orbit energy to that between second and third Bohr's orbit energy for H-atom is 1/2 91/35 27/5 5/27 kindlygive detailed solution.

34. A proton is released from 10cm from a large sheet carrying a surface density

Write the electronic configuration of Oxygen, Chlorine and Sodium according to the Bohr-Bury Scheme.[3 MARKS]

41 Primary valency of cocl3:6nh3and cocl3:5nh3

Which theory has provided an explanation for the law of conservation of mass and the law of definite proportions?

If we increase the intermolecular force of attraction melting point of a solid

For the second order reaction NO (g) + Cl2 (g) NOCl (g) + Cl (g) The value of Ea at 25oC is 8.5 x 104 J Mol and fraction of sufficient collisions is 1.2 x 10-15. The fraction of molecular collision when the temperature is raised to 35o C is

Heavy water is-

How is carbon considered a unique element?

निम्नलिखितप्रश्न का उत्तरदीजिए −कवयित्रीको आकाश के तारेस्नेहहीन सेक्यों प्रतीतहो रहे हैं?

Acidified K2Cr2O7 oxidizes H2S to

Which of the following processes is not responsible for liberation of carbon dioxide?

11. What is solubility? What is dissolution?

calculate the PH of solution containing 0.98g H2SO4 in 100 mL of water

If an atom of an element has 34 electrons in total and the number of valence electrons?

The method that can be used to separate a liquid from a mixture of miscible liquids with different boiling points is ___________ distillation.

Two moles of NH3 gas are introduced into a previously evacuated one litre vessel in which it partially dissociates at high temperature as 2NH3 (g)N2 (g) + 3H2 (g). At equilibrium, onemole of NH3(g) remain. The value of Kc is

The following diagram showing part of the periodic table in which atomic radii of elements of group 17 are given. Which of the following elements has the lowest atomic radii?

Which of the following has the highest mass?

Discuss various uses of plastics in our everyday life.

Why do glucose molecules move from aqueous medium to the organic solvent when the separating funnel is kept undisturbed? Why is the separating funnel shaken before it's kept undisturbed in the stand?

34. Can Kelvin scale have negative temperature? And why?

One atom of K3919 contains: (P-proton, n-neutron and ¯e​-electron)

How will you separate a mixture of iron filings and sulphur powder without using carbon disulphide?

Differentiate between true solution and colloidal and suspension solution

Kerosene and water can be seperated because they have different ____

Which one of the following lanthanoids does not form MO2?(M = Lanthanoid element)

Question 13 You must have seen tarnished copper vessels being cleaned with lemon or tamarind juice. Explain why these sour substances are effective in cleaning the vessels.

Equal weight of N2 & H2 gases in a vessel have the ratio of partial pressure is

Which non-metal is used to disinfect water?

One atom of K3919 contains: (P-proton, n-neutron and ¯e-electron)