15280 + Interview Questions in Chemistry Page 17 InterviewSolution

801.	What is the structure and formula of •diamond •graphite •fulerene •protein
Answer» What is the structure and formula of •diamond •graphite •fulerene •protein

Discussion

802.	Why HCl is a mineral acid evenif it is Present in our stomach... It would we an organic acid though.. ☁☁☁☁☁☁☁⚡ ☁☁☁☁☁☁⚡☁ ☁☁☁☁☁⚡⚡☁ ☁☁☁☁⚡⚡☁☁ ☁☁☁⚡⚡☁☁☁ ☁☁⚡⚡⚡☁☁☁ ☁⚡⚡⚡☁☁☁☁ ⚡⚡⚡⚡⚡⚡⚡⚡ ⚡⚡⚡⚡⚡⚡⚡⚡ ☁☁☁☁⚡⚡⚡☁ ☁☁☁⚡⚡⚡☁☁ ☁☁☁⚡⚡☁☁☁ ☁☁⚡⚡☁☁☁☁ ☁⚡⚡☁☁☁☁☁ ☁⚡☁☁☁☁☁☁ ⚡☁☁☁☁☁☁☁ Shocked!
Answer» Why HCl is a mineral acid evenif it is Present in our stomach... It would we an organic acid though.. ☁☁☁☁☁☁☁⚡ ☁☁☁☁☁☁⚡☁ ☁☁☁☁☁⚡⚡☁ ☁☁☁☁⚡⚡☁☁ ☁☁☁⚡⚡☁☁☁ ☁☁⚡⚡⚡☁☁☁ ☁⚡⚡⚡☁☁☁☁ ⚡⚡⚡⚡⚡⚡⚡⚡ ⚡⚡⚡⚡⚡⚡⚡⚡ ☁☁☁☁⚡⚡⚡☁ ☁☁☁⚡⚡⚡☁☁ ☁☁☁⚡⚡☁☁☁ ☁☁⚡⚡☁☁☁☁ ☁⚡⚡☁☁☁☁☁ ☁⚡☁☁☁☁☁☁ ⚡☁☁☁☁☁☁☁ Shocked!

802.

Why HCl is a mineral acid evenif it is Present in our stomach... It would we an organic acid though.. ☁☁☁☁☁☁☁⚡ ☁☁☁☁☁☁⚡☁ ☁☁☁☁☁⚡⚡☁ ☁☁☁☁⚡⚡☁☁ ☁☁☁⚡⚡☁☁☁ ☁☁⚡⚡⚡☁☁☁ ☁⚡⚡⚡☁☁☁☁ ⚡⚡⚡⚡⚡⚡⚡⚡ ⚡⚡⚡⚡⚡⚡⚡⚡ ☁☁☁☁⚡⚡⚡☁ ☁☁☁⚡⚡⚡☁☁ ☁☁☁⚡⚡☁☁☁ ☁☁⚡⚡☁☁☁☁ ☁⚡⚡☁☁☁☁☁ ☁⚡☁☁☁☁☁☁ ⚡☁☁☁☁☁☁☁ Shocked!

Answer»

Why HCl is a mineral acid evenif it is Present in our stomach... It would we an organic acid though.. ☁☁☁☁☁☁☁⚡

☁☁☁☁☁☁⚡☁

☁☁☁☁☁⚡⚡☁

☁☁☁☁⚡⚡☁☁

☁☁☁⚡⚡☁☁☁

☁☁⚡⚡⚡☁☁☁

☁⚡⚡⚡☁☁☁☁

⚡⚡⚡⚡⚡⚡⚡⚡

☁☁☁☁⚡⚡⚡☁

☁☁☁⚡⚡⚡☁☁

☁☁☁⚡⚡☁☁☁

☁☁⚡⚡☁☁☁☁

☁⚡⚡☁☁☁☁☁

☁⚡☁☁☁☁☁☁

⚡☁☁☁☁☁☁☁

Shocked!

Discussion

803.	1) calculate the concentration of nitric acid in moles per litter in a sample which has a density , 1.41g ml^-1 and the mass percent of nitric acid in it being 69%?
Answer» 1) calculate the concentration of nitric acid in moles per litter in a sample which has a density , 1.41g ml^-1 and the mass percent of nitric acid in it being 69%?

Discussion

804.	Assuming that petrol is octane {C8H18} and density is 0.8gml^-1 ; 1.425 liter on complete combustion will consume how much oxygen.
Answer» Assuming that petrol is octane {C8H18} and density is 0.8gml^-1 ; 1.425 liter on complete combustion will consume how much oxygen.

Discussion

805.	On the passage of excess of Ammonia, colourless nesseler's reagent turns to which colour?
Answer» On the passage of excess of Ammonia, colourless nesseler's reagent turns to which colour?

Discussion

806.	Why Hg(1) exists as Hg2 2+
Answer» Why Hg(1) exists as Hg2 2+

Discussion

807.	100 ml of 0.3M H_{3 }PO_4 is titrated against 0.6M NaOH solution.Volume of NaOHrequired for complete neutralisation of acid i
Answer» 100 ml of 0.3M H_{3 }PO_4 is titrated against 0.6M NaOH solution.Volume of NaOHrequired for complete neutralisation of acid i

Discussion

808.	Which of the following are examples of exothermic processes?
Answer» Which of the following are examples of exothermic processes?

Discussion

809.	Mass of 6.022 x 1022 molecules of CO2 is about:
Answer» Mass of 6.022 x 10²² molecules of CO₂ is about:

809.

Mass of 6.022 x 1022 molecules of CO2 is about:

Answer»

Mass of 6.022 x 10²² molecules of CO₂ is about:

Discussion

810.	What are aldehydes and functional group?? ?? What are alcohol and it's functional group also? ?? ??
Answer» What are aldehydes and functional group?? ?? What are alcohol and it's functional group also? ?? ??

Discussion

811.	A vessel of volume 2×10^-3m3 contains 1/10 mole of hydrogen gas and 2/10 mole of helium. If temperature of the mixture is 300 k, then the pressure of gas is nearly
Answer» A vessel of volume 2×10^-3m3 contains 1/10 mole of hydrogen gas and 2/10 mole of helium. If temperature of the mixture is 300 k, then the pressure of gas is nearly

Discussion

812.	Why electrical conductivity decreases when the temperature increases?
Answer» Why electrical conductivity decreases when the temperature increases?

Discussion

813.

For the main group of the periodic table, the metallic properties of the elements vary approximately with their position as shown in the table. 1 2 13 14 15 16 17 18 H He A B C D (i) Will the most metallic element be found at A, B, C or D?(ii) Will the most non-metallic element be found at A, B, C or D?

Answer» For the main group of the periodic table, the metallic properties of the elements vary approximately with their position as shown in the table.

1	2	13	14	15	16	17	18
H							He
A				B
C				D

(i) Will the most metallic element be found at A, B, C or D?

(ii) Will the most non-metallic element be found at A, B, C or D?

Discussion

814.	Which of the following has the highest ionization energy?
Answer» Which of the following has the highest ionization energy?

Discussion

815.	8. Atoms A B C D are located at corners face-centres T voids and O voids respectively. If the body centre is origin and atoms present in ( or touching ) first octant are removed then the formula of compound is:
Answer» 8. Atoms A B C D are located at corners face-centres T voids and O voids respectively. If the body centre is origin and atoms present in ( or touching ) first octant are removed then the formula of compound is:

Discussion

816.	Which of the following processes is called chlor-alkali process?
Answer» Which of the following processes is called chlor-alkali process?

Discussion

817.	What does A, B and C stand for the set up of a voltaic cell?
Answer» What does A, B and C stand for the set up of a voltaic cell?

817.

What does A, B and C stand for the set up of a voltaic cell?

Answer»

What does A, B and C stand for the set up of a voltaic cell?

Discussion

818.	Give a balanced equation for conversion of - a] an ammonium salt to a basic b] a soluble lead salt to an insoluble lead salt – formed as a white precipitate.
Answer» Give a balanced equation for conversion of - a] an ammonium salt to a basic b] a soluble lead salt to an insoluble lead salt – formed as a white precipitate.

Discussion

819.	The mass of one molecule of C6H1206 is
Answer» The mass of one molecule of C6H1206 is

Discussion

820.	during the electrolysis of aqueous cuso4 the mass of cu deposited is equal to63.5 gms calculate the mass of oxygen liberated and volume of oxygenliberated at st
Answer» during the electrolysis of aqueous cuso4 the mass of cu deposited is equal to63.5 gms calculate the mass of oxygen liberated and volume of oxygenliberated at st

Discussion

821.	The maximum number of electrons in a shell can be calculated by the formula _______.
Answer» The maximum number of electrons in a shell can be calculated by the formula _______.

Discussion

822.	What are the products when ethane reacts with chlorine in the presence of sunlight?
Answer» What are the products when ethane reacts with chlorine in the presence of sunlight?

Discussion

823.	The following questions refer to the electrolysis of CuSO4 solution with copper electrodes.(i) What is the change in the mass of cathode and anode?(ii) What will happen to the colour of the electrolyte if platinum electrodes are used? Explain.(iii) Briefly, describe one practical application of electrolysis of CuSO4 solution.
Answer» The following questions refer to the electrolysis of CuSO₄ solution with copper electrodes. (i) What is the change in the mass of cathode and anode? (ii) What will happen to the colour of the electrolyte if platinum electrodes are used? Explain. (iii) Briefly, describe one practical application of electrolysis of CuSO₄ solution.

Discussion

824.	(a) The table below compares some properties of metals and non-metals.Write down the missing statements (i) to (iv) : METALSNON-METALS(i)............Poor conductors of heat.(ii) Malleable............(iii) Form positive ions.......................Form acidic oxides. (b) How many valence electrons are present in: (i) metals and (ii) non-metals?
Answer» (a) The table below compares some properties of metals and non-metals.Write down the missing statements (i) to (iv) : $\begin{matrix} METALS & NON-METALS (i) . . . . . . . . . . . . & P o o r c o n d u c t o r s o f h e a t . (i i) M a l l e a b l e & . . . . . . . . . . . . (i i i) F o r m p o s i t i v e i o n s & . . . . . . . . . . . . . . . . . . . . . . . & F o r m a c i d i c o x i d e s . \end{matrix}$ (b) How many valence electrons are present in: (i) metals and (ii) non-metals?

824.

(a) The table below compares some properties of metals and non-metals.Write down the missing statements (i) to (iv) : METALSNON-METALS(i)............Poor conductors of heat.(ii) Malleable............(iii) Form positive ions.......................Form acidic oxides. (b) How many valence electrons are present in: (i) metals and (ii) non-metals?

Answer»

(a) The table below compares some properties of metals and non-metals.Write down the missing statements (i) to (iv) :

$\begin{matrix} METALS & NON-METALS (i) . . . . . . . . . . . . & P o o r c o n d u c t o r s o f h e a t . (i i) M a l l e a b l e & . . . . . . . . . . . . (i i i) F o r m p o s i t i v e i o n s & . . . . . . . . . . . . . . . . . . . . . . . & F o r m a c i d i c o x i d e s . \end{matrix}$

(b) How many valence electrons are present in:

(i) metals and (ii) non-metals?

Discussion

825.	Here A or B is
Answer» Here A or B is

825.

Here A or B is

Answer»

Here A or B is

Discussion

826.	Which of the following metal reacts with steam to give metal oxide?
Answer» Which of the following metal reacts with steam to give metal oxide?

Discussion

827.	State what do you observe when ethene is bubbled through a solution of bromine in tetrachloromethane (carbon tetrachloride).
Answer» State what do you observe when ethene is bubbled through a solution of bromine in tetrachloromethane (carbon tetrachloride).

Discussion

828.	37. Between acetamide and ethyl amine which on shows more basic property and WHY?
Answer» 37. Between acetamide and ethyl amine which on shows more basic property and WHY?

Discussion

829.	100. In displacement of metals sequence is necessary
Answer» 100. In displacement of metals sequence is necessary

Discussion

830.	Write a balanced equation for the laboratory preparation of ammonia from ammonium chloride.
Answer» Write a balanced equation for the laboratory preparation of ammonia from ammonium chloride.

Discussion

831.	arrange methane, ethane, propane and butane in order of increasing melting point considering alternation effect?
Answer» arrange methane, ethane, propane and butane in order of increasing melting point considering alternation effect?

Discussion

832.	The chemical name of the compound obtained by catalytic oxidation of ammonia is:
Answer» The chemical name of the compound obtained by catalytic oxidation of ammonia is:

Discussion

833.	Write short notes.a. Glass production.b. Optic glassc. Uses of plastic.
Answer» Write short notes. a. Glass production. b. Optic glass c. Uses of plastic.

Discussion

834.	What will happen if we do not clean our teeth regularly?
Answer» What will happen if we do not clean our teeth regularly?

834.

What will happen if we do not clean our teeth regularly?

Answer»

What will happen if we do not clean our teeth regularly?

Discussion

835.	In one of the byjus module of this chapter, it says that acids are defined as anything that accepts proton and base is defined as anything that donates proton. But isn't it true that the proton cannot be touched because I'm told so in the school..
Answer» In one of the byjus module of this chapter, it says that acids are defined as anything that accepts proton and base is defined as anything that donates proton. But isn't it true that the proton cannot be touched because I'm told so in the school..

Discussion

836.	13.the carboxylic acid which has maximum solubility in water a. phthalic acid b. succinic acid c. malonic acid d. salicylic acid and why ?
Answer» 13.the carboxylic acid which has maximum solubility in water a. phthalic acid b. succinic acid c. malonic acid d. salicylic acid and why ?

Discussion

837.	In this question, you are required to supply the word (or words) that will make the sentence correct. Rewrite the correct statement.Copper sulphate crystals are dehydrated by sulphuric acid.
Answer» In this question, you are required to supply the word (or words) that will make the sentence correct. Rewrite the correct statement. Copper sulphate crystals are dehydrated by sulphuric acid.

Discussion

838.	Atomic weight of Boron is 10.81 and it has twoisotopes B10 and B11, then the ratio ofSB10 B11 in nature would be(1) 15 16(3) 19: 81(4) 81: 19
Answer» Atomic weight of Boron is 10.81 and it has twoisotopes B10 and B11, then the ratio ofSB10 B11 in nature would be(1) 15 16(3) 19: 81(4) 81: 19

Discussion

839.	Which catalyst is used in the first stage of the Ostwald Process?
Answer» Which catalyst is used in the first stage of the Ostwald Process?

Discussion

840.	(i) An aqueous solution of sodium chloride is not used for electrolytic reduction of sodium metal. Why?(ii) For the reduction of a metal oxide, suggest a reducing agent other than carbon.
Answer» (i) An aqueous solution of sodium chloride is not used for electrolytic reduction of sodium metal. Why? (ii) For the reduction of a metal oxide, suggest a reducing agent other than carbon.

Discussion

841.	An element A which is a part of common salt and kept under kerosene reacts with another element B of atomic number 17 to give a product C. When an aqueous solution of product C is electrolysed then a compound D is formed and two gases are liberated. (a) What are A and B? (c) Identify C and D. (c) What will be the action of C on a litmus solution? Why? (d) State whether element B is a solid, liquid or gas at room temperature. (e) Write the formula of the compound formed when element B reacts with an element E having atomic number 5.
Answer» An element A which is a part of common salt and kept under kerosene reacts with another element B of atomic number 17 to give a product C. When an aqueous solution of product C is electrolysed then a compound D is formed and two gases are liberated. (a) What are A and B? (c) Identify C and D. (c) What will be the action of C on a litmus solution? Why? (d) State whether element B is a solid, liquid or gas at room temperature. (e) Write the formula of the compound formed when element B reacts with an element E having atomic number 5.

Discussion

842.	What is the electronic configuration of Xenon as(KLMN) shell?
Answer» What is the electronic configuration of Xenon as(KLMN) shell?

Discussion

843.	If x,p,q,y are in A.P., then the value of p/q is?
Answer» If x,p,q,y are in A.P., then the value of p/q is?

Discussion

844.	The rapid change of ph near the stoichiometric point of an acid base titration is the basis of indicator detection ph of solution is related to the ratio of the concentration of the conjugate acid(h\ln) and basr (\ln) forms of the indicator by the expressio
Answer» The rapid change of ph near the stoichiometric point of an acid base titration is the basis of indicator detection ph of solution is related to the ratio of the concentration of the conjugate acid(h\ln) and basr (\ln) forms of the indicator by the expressio

Discussion

845.	What is the difference between a molecule and monomer ? seems typically same.... Ques not under that particular chapter !!
Answer» What is the difference between a molecule and monomer ? seems typically same.... Ques not under that particular chapter !!

845.

What is the difference between a molecule and monomer ? seems typically same.... Ques not under that particular chapter !!

Answer»

What is the difference between a molecule and monomer ?

seems typically same....

Ques not under that particular chapter !!

Discussion

846.	Ph of .005 M calcium acetate is
Answer» Ph of .005 M calcium acetate is

Discussion

847.	47.which of the following compound has maximum carbon single carbon bond length (1) ch2ChCCh (2)hCCCCh (3)Ch3Chch2 (4)ch2ChChCh 2
Answer» 47.which of the following compound has maximum carbon single carbon bond length (1) ch2ChCCh (2)hCCCCh (3)Ch3Chch2 (4)ch2ChChCh 2

Discussion

848.	The molecules having triple bond in them are: (a) Oxygen and ethyne (b) carbon dioxide and ammonia (c) Methane and ethene (d) Nitrogen and ethyne
Answer» The molecules having triple bond in them are: (a) Oxygen and ethyne (b) carbon dioxide and ammonia (c) Methane and ethene (d) Nitrogen and ethyne

848.

The molecules having triple bond in them are: (a) Oxygen and ethyne (b) carbon dioxide and ammonia (c) Methane and ethene (d) Nitrogen and ethyne

Answer»

The molecules having triple bond in them are:

(a) Oxygen and ethyne

(b) carbon dioxide and ammonia

(c) Methane and ethene

(d) Nitrogen and ethyne

Discussion

849.	The oxidation states of the most electronegative element in the product obtained by reacting BaO2 with dilute H2SO4 is:
Answer» The oxidation states of the most electronegative element in the product obtained by reacting $B a O_{2}$ with dilute $H_{2} S O_{4}$ is:

Discussion

850.	10 1.25g of CCl2F2 is cooled at constant atmospheric pressure of 1 atm from 320K to 293K. During cooling the sample volume decreased from 274 to 248 mL. Calculate change in enthalpy for this process. Cp =80.7 J/mol K A 22.51 J B -19.83 J C 19.88 J D -22.51 J
Answer» 10 1.25g of CCl2F2 is cooled at constant atmospheric pressure of 1 atm from 320K to 293K. During cooling the sample volume decreased from 274 to 248 mL. Calculate change in enthalpy for this process. Cp =80.7 J/mol K A 22.51 J B -19.83 J C 19.88 J D -22.51 J

Discussion

Explore topic-wise InterviewSolutions in .

What is the structure and formula of •diamond •graphite •fulerene •protein

1) calculate the concentration of nitric acid in moles per litter in a sample which has a density , 1.41g ml^-1 and the mass percent of nitric acid in it being 69%?

Assuming that petrol is octane {C8H18} and density is 0.8gml^-1 ; 1.425 liter on complete combustion will consume how much oxygen.

On the passage of excess of Ammonia, colourless nesseler's reagent turns to which colour?

Why Hg(1) exists as Hg2 2+

100 ml of 0.3M H_{3 }PO_4 is titrated against 0.6M NaOH solution.Volume of NaOHrequired for complete neutralisation of acid i

Which of the following are examples of exothermic processes?

Mass of 6.022 x 1022 molecules of CO2 is about:

What are aldehydes and functional group?? ?? What are alcohol and it's functional group also? ?? ??

A vessel of volume 2×10^-3m3 contains 1/10 mole of hydrogen gas and 2/10 mole of helium. If temperature of the mixture is 300 k, then the pressure of gas is nearly

Why electrical conductivity decreases when the temperature increases?

Which of the following has the highest ionization energy?

8. Atoms A B C D are located at corners face-centres T voids and O voids respectively. If the body centre is origin and atoms present in ( or touching ) first octant are removed then the formula of compound is:

Which of the following processes is called chlor-alkali process?

What does A, B and C stand for the set up of a voltaic cell?

Give a balanced equation for conversion of - a] an ammonium salt to a basic b] a soluble lead salt to an insoluble lead salt – formed as a white precipitate.

The mass of one molecule of C6H1206 is

during the electrolysis of aqueous cuso4 the mass of cu deposited is equal to63.5 gms calculate the mass of oxygen liberated and volume of oxygenliberated at st

The maximum number of electrons in a shell can be calculated by the formula _______.

What are the products when ethane reacts with chlorine in the presence of sunlight?

Here A or B is

Which of the following metal reacts with steam to give metal oxide?

State what do you observe when ethene is bubbled through a solution of bromine in tetrachloromethane (carbon tetrachloride).

37. Between acetamide and ethyl amine which on shows more basic property and WHY?

100. In displacement of metals sequence is necessary

Write a balanced equation for the laboratory preparation of ammonia from ammonium chloride.

arrange methane, ethane, propane and butane in order of increasing melting point considering alternation effect?

The chemical name of the compound obtained by catalytic oxidation of ammonia is:

Write short notes.a. Glass production.b. Optic glassc. Uses of plastic.

What will happen if we do not clean our teeth regularly?

In one of the byjus module of this chapter, it says that acids are defined as anything that accepts proton and base is defined as anything that donates proton. But isn't it true that the proton cannot be touched because I'm told so in the school..

13.the carboxylic acid which has maximum solubility in water a. phthalic acid b. succinic acid c. malonic acid d. salicylic acid and why ?

In this question, you are required to supply the word (or words) that will make the sentence correct. Rewrite the correct statement.Copper sulphate crystals are dehydrated by sulphuric acid.

Atomic weight of Boron is 10.81 and it has twoisotopes B10 and B11, then the ratio ofSB10 B11 in nature would be(1) 15 16(3) 19: 81(4) 81: 19

Which catalyst is used in the first stage of the Ostwald Process?

(i) An aqueous solution of sodium chloride is not used for electrolytic reduction of sodium metal. Why?(ii) For the reduction of a metal oxide, suggest a reducing agent other than carbon.

What is the electronic configuration of Xenon as(KLMN) shell?

If x,p,q,y are in A.P., then the value of p/q is?

The rapid change of ph near the stoichiometric point of an acid base titration is the basis of indicator detection ph of solution is related to the ratio of the concentration of the conjugate acid(h\ln) and basr (\ln) forms of the indicator by the expressio

What is the difference between a molecule and monomer ? seems typically same.... Ques not under that particular chapter !!

Ph of .005 M calcium acetate is

47.which of the following compound has maximum carbon single carbon bond length (1) ch2ChCCh (2)hCCCCh (3)Ch3Chch2 (4)ch2ChChCh 2

The molecules having triple bond in them are: (a) Oxygen and ethyne (b) carbon dioxide and ammonia (c) Methane and ethene (d) Nitrogen and ethyne

The oxidation states of the most electronegative element in the product obtained by reacting BaO2 with dilute H2SO4 is:

10 1.25g of CCl2F2 is cooled at constant atmospheric pressure of 1 atm from 320K to 293K. During cooling the sample volume decreased from 274 to 248 mL. Calculate change in enthalpy for this process. Cp =80.7 J/mol K A 22.51 J B -19.83 J C 19.88 J D -22.51 J