10223 + Interview Questions in Chemistry Page 119 InterviewSolution

5901.	61. Which one of the following electrolytes has the same value of vant's Hoff's factor 1.) as that of Al(SO4)3 (if all are 100%ionised) 1.K4{Fe(CN)6} 2.K2SO4 3.K3{Fe(CN)6} 4.Al(NO3)3
Answer» 61. Which one of the following electrolytes has the same value of vant's Hoff's factor 1.) as that of Al(SO4)3 (if all are 100%ionised) 1.K4{Fe(CN)6} 2.K2SO4 3.K3{Fe(CN)6} 4.Al(NO3)3

Discussion

5902.	The atomic number of hydrogen is 1 and that of helium is 2. Why is hydrogen(a non-metal) placed in the first group and helium in the 18th group?
Answer» The atomic number of hydrogen is 1 and that of helium is 2. Why is hydrogen(a non-metal) placed in the first group and helium in the 18th group?

Discussion

5903.	Which has more electrical conductivity and why - liquid silver or solid silver?
Answer» Which has more electrical conductivity and why - liquid silver or solid silver?

Discussion

5904.	For the reaction NH2COONH4(s)--------->2NH3(g)+CO2(g).If equilibrium pressure is 3X bar then G^°r will be
Answer» For the reaction NH2COONH4(s)--------->2NH3(g)+CO2(g).If equilibrium pressure is 3X bar then G^°r will be

Discussion

5905.	Which of the following salt is not used as a fertilizer?
Answer» Which of the following salt is not used as a fertilizer?

Discussion

5906.	How can you convert a saturated solution into an unsaturated one?
Answer» How can you convert a saturated solution into an unsaturated one?

Discussion

5907.	what is oxidising and reducing agents ?
Answer» what is oxidising and reducing agents ?

Discussion

5908.	The number of molecules in 16.0g of oxygen is
Answer» The number of molecules in 16.0g of oxygen is

Discussion

5909.	Which of the following statement is not correct about anions?
Answer» Which of the following statement is not correct about anions?

Discussion

5910.	The removal of dust particles from rice is done by ____.
Answer» The removal of dust particles from rice is done by ____.

Discussion

5911.	___ is the technique is used to separate salt from sea water.
Answer» ___ is the technique is used to separate salt from sea water.

Discussion

5912.	What is chromatography? How does solubility affect chromatography?
Answer» What is chromatography? How does solubility affect chromatography?

Discussion

5913.	dynamic mass of the photon in usual notations is given by a]hv/cb]h lamda/cc]h/c lamdad]h/cv
Answer» dynamic mass of the photon in usual notations is given by a]hv/c b]h lamda/c c]h/c lamda d]h/cv

Discussion

5914.	Explain the difference:a. Diamond and graphite.b. Crystalline and non-crystalline forms of carbon.
Answer» Explain the difference: a. Diamond and graphite. b. Crystalline and non-crystalline forms of carbon.

Discussion

5915.	Further what will be meant by second excitation energy And second seperation energy
Answer» Further what will be meant by second excitation energy And second seperation energy

Discussion

5916.	Which amongst the following is identified as a group III anion in the preliminary test?
Answer» Which amongst the following is identified as a group III anion in the preliminary test?

Discussion

5917.	Answer the following.a. Which fuels can be obtained by microbial processes? Why is it necessary to increase the use of such fuels?b. How can the oil spills of rivers and oceans be cleaned?c. How can the soil polluted by acid rain be made fertile again?d. Explain the importance of biopesticides in or ganic farming.e. Which are the reasons for increasing the popularity of probiotic products?f. How the bread and other products produced using baker’s yeast are nutritious?g. Which precautions are necessary for proper decomposition of domestic waste?h. Why is it necessary to ban the use of plastic bags?
Answer» Answer the following. a. Which fuels can be obtained by microbial processes? Why is it necessary to increase the use of such fuels? b. How can the oil spills of rivers and oceans be cleaned? c. How can the soil polluted by acid rain be made fertile again? d. Explain the importance of biopesticides in or ganic farming. e. Which are the reasons for increasing the popularity of probiotic products? f. How the bread and other products produced using baker’s yeast are nutritious? g. Which precautions are necessary for proper decomposition of domestic waste? h. Why is it necessary to ban the use of plastic bags?

Discussion

5918.	What is meant by instantaneous speed is the magnitude of velocity
Answer» What is meant by instantaneous speed is the magnitude of velocity

Discussion

5919.	How many total ULTRAVIOLET lines are possible when anelectron in a hydrogen atom returns from the 6thexcited state to ground level?(1) 6 (2) 8(3) 15 (4) 21
Answer» How many total ULTRAVIOLET lines are possible when an electron in a hydrogen atom returns from the 6th excited state to ground level? (1) 6 (2) 8 (3) 15 (4) 21

Discussion

5920.	The volume of a certain mass of gas at constant pressure is doubled to its value at 0°C. The temperature of the gas will be?
Answer» The volume of a certain mass of gas at constant pressure is doubled to its value at 0°C. The temperature of the gas will be?

Discussion

5921.	Structural formula of linolenic acid and arachidonic acid.
Answer» Structural formula of linolenic acid and arachidonic acid.

Discussion

5922.	Correct set of four quantum numbers for the valence (outermost) electron of rubidium (5th element in group I) is:
Answer» Correct set of four quantum numbers for the valence (outermost) electron of rubidium ( $5^{t h}$ element in group I) is:

Discussion

5923.	which is the most metallic element of group1
Answer» which is the most metallic element of group1

Discussion

5924.	The concentration (w/w%) of a 200 gram solution of common salt is 10% . If 20 gram more water is mixed in it then it concentration becomes
Answer» The concentration (w/w%) of a 200 gram solution of common salt is 10% . If 20 gram more water is mixed in it then it concentration becomes

Discussion

5925.	Acid rain corrodes marble of the Taj Mahal. This phenomenon is named as ___.
Answer» Acid rain corrodes marble of the Taj Mahal. This phenomenon is named as ___.

Discussion

5926.	What will be the hybridisation of oxygen in nitro compounds
Answer» What will be the hybridisation of oxygen in nitro compounds

Discussion

5927.	Natrium is the latin name of which element?
Answer» Natrium is the latin name of which element?

Discussion

5928.	What is water- an acid or a base ?
Answer» What is water- an acid or a base ?

Discussion

5929.	43. Do stong field ligands always form inner orbital complex? Why why not
Answer» 43. Do stong field ligands always form inner orbital complex? Why why not

Discussion

5930.	Who gave the term "Atom" and "Molecule"
Answer» Who gave the term "Atom" and "Molecule"

Discussion

5931.	tan cos
Answer» tan cos

Discussion

5932.	How can we separate salt from salt solution?
Answer» How can we separate salt from salt solution?

Discussion

5933.	Why atoms are so small?
Answer» Why atoms are so small?

Discussion

5934.	The Van der Waals radii of O,N,Cl,F and Ne increases in the order?
Answer» The Van der Waals radii of $O, N, C l, F$ and $N e$ increases in the order?

Discussion

5935.	What type of solution is the material 'solid foam'?
Answer» What type of solution is the material 'solid foam'?

Discussion

5936.	Calculate the mass percent of different elements present in sodium sulphate (Na2SO4).
Answer» Calculate the mass percent of different elements present in sodium sulphate (Na₂SO₄).

Discussion

5937.	Explain briefly interconversion of states of matter on basis of kinetic theory of gases?
Answer» Explain briefly interconversion of states of matter on basis of kinetic theory of gases?

Discussion

5938.	On a hot sunny day why do we feel pleasant sitting under a tree?
Answer» On a hot sunny day why do we feel pleasant sitting under a tree?

Discussion

5939.	Differentiate between gas and vapour?
Answer» Differentiate between gas and vapour?

Discussion

5940.	Which of the following is/are the requirements for the formation of metallic bonds? (i) Formation of negative ions. (ii) Formation of positive ions. (iii) Freely moving electrons. (iv) Sharing of electrons between two atoms.
Answer» Which of the following is/are the requirements for the formation of metallic bonds? (i) Formation of negative ions. (ii) Formation of positive ions. (iii) Freely moving electrons. (iv) Sharing of electrons between two atoms.

Discussion

5941.	Mendeleev’s periodic law states that the properties of elements are a periodic function of their
Answer» Mendeleev’s periodic law states that the properties of elements are a periodic function of their

Discussion

5942.	19. The metal used to recover copper from an aqueous solution of copper sulphate is
Answer» 19. The metal used to recover copper from an aqueous solution of copper sulphate is

Discussion

5943.	Study the reaction given below and write the electronic configuration of Cl− when Cl is 2, 8, 7. Cl+e−→Cl−
Answer» Study the reaction given below and write the electronic configuration of $C l^{-}$ when Cl is 2, 8, 7. $C l + e^{-} \to C l^{-}$

5943.

Study the reaction given below and write the electronic configuration of Cl− when Cl is 2, 8, 7. Cl+e−→Cl−

Answer»

Study the reaction given below and write the electronic configuration of $C l^{-}$ when Cl is 2, 8, 7.

$C l + e^{-} \to C l^{-}$

Discussion

5944.	What is electronic configuration .How to find the electronic configuration of metals as a ex.oxygen
Answer» What is electronic configuration .How to find the electronic configuration of metals as a ex.oxygen

Discussion

5945.	The molar conductance of NaCl, HCl and CH3COONa at infinite dilution are 126.45, 426.16 and 91.0 S cm2 mol–1 respectively. The molar conductance of CH3COOH at infinite dilution is.Choose the right option for your answer.
Answer» The molar conductance of $N a C l, H C l$ and $C H_{3} C O O N a$ at infinite dilution are $126.45, 426.16$ and $91.0 S c m^{2} m o l^{- 1}$ respectively. The molar conductance of $C H_{3} C O O H$ at infinite dilution is. Choose the right option for your answer.

Discussion

5946.	Is it necessary to assume 'a' as one always while balancing any equation,
Answer» Is it necessary to assume 'a' as one always while balancing any equation,

Discussion

5947.	The salt used for performing bead test in qualitative inorganic analysis is:
Answer» The salt used for performing bead test in qualitative inorganic analysis is:

Discussion

5948.	38. The isotopic abundance of C-12 and C-14 is 98% and 2% respectively. What would be the number of C-14 isotope in 12g carbon sample?
Answer» 38. The isotopic abundance of C-12 and C-14 is 98% and 2% respectively. What would be the number of C-14 isotope in 12g carbon sample?

Discussion

5949.	Potential and Kinetic energy of an electron in 3rd orbit of H atom ?
Answer» Potential and Kinetic energy of an electron in 3rd orbit of H atom ?

Discussion

5950.	Question 10Which of the following is the correct representation of electron dot structure of nitrogen(a) (b) (c)(d)
Answer» Question 10 Which of the following is the correct representation of electron dot structure of nitrogen (a) (b) (c) (d)

Discussion

Explore topic-wise InterviewSolutions in .

61. Which one of the following electrolytes has the same value of vant's Hoff's factor 1.) as that of Al(SO4)3 (if all are 100%ionised) 1.K4{Fe(CN)6} 2.K2SO4 3.K3{Fe(CN)6} 4.Al(NO3)3

The atomic number of hydrogen is 1 and that of helium is 2. Why is hydrogen(a non-metal) placed in the first group and helium in the 18th group?

Which has more electrical conductivity and why - liquid silver or solid silver?

For the reaction NH2COONH4(s)--------->2NH3(g)+CO2(g).If equilibrium pressure is 3X bar then G^°r will be

Which of the following salt is not used as a fertilizer?

How can you convert a saturated solution into an unsaturated one?

what is oxidising and reducing agents ?

The number of molecules in 16.0g of oxygen is

Which of the following statement is not correct about anions?

The removal of dust particles from rice is done by ____.

___ is the technique is used to separate salt from sea water.

What is chromatography? How does solubility affect chromatography?

dynamic mass of the photon in usual notations is given by a]hv/cb]h lamda/cc]h/c lamdad]h/cv

Explain the difference:a. Diamond and graphite.b. Crystalline and non-crystalline forms of carbon.

Further what will be meant by second excitation energy And second seperation energy

Which amongst the following is identified as a group III anion in the preliminary test?

What is meant by instantaneous speed is the magnitude of velocity

How many total ULTRAVIOLET lines are possible when anelectron in a hydrogen atom returns from the 6thexcited state to ground level?(1) 6 (2) 8(3) 15 (4) 21

The volume of a certain mass of gas at constant pressure is doubled to its value at 0°C. The temperature of the gas will be?

Structural formula of linolenic acid and arachidonic acid.

Correct set of four quantum numbers for the valence (outermost) electron of rubidium (5th element in group I) is:

which is the most metallic element of group1

The concentration (w/w%) of a 200 gram solution of common salt is 10% . If 20 gram more water is mixed in it then it concentration becomes

Acid rain corrodes marble of the Taj Mahal. This phenomenon is named as ___.

What will be the hybridisation of oxygen in nitro compounds

Natrium is the latin name of which element?

What is water- an acid or a base ?

43. Do stong field ligands always form inner orbital complex? Why why not

Who gave the term "Atom" and "Molecule"

tan cos

How can we separate salt from salt solution?

Why atoms are so small?

The Van der Waals radii of O,N,Cl,F and Ne increases in the order?

What type of solution is the material 'solid foam'?

Calculate the mass percent of different elements present in sodium sulphate (Na2SO4).

Explain briefly interconversion of states of matter on basis of kinetic theory of gases?

On a hot sunny day why do we feel pleasant sitting under a tree?

Differentiate between gas and vapour?

Which of the following is/are the requirements for the formation of metallic bonds? (i) Formation of negative ions. (ii) Formation of positive ions. (iii) Freely moving electrons. (iv) Sharing of electrons between two atoms.

Mendeleev’s periodic law states that the properties of elements are a periodic function of their

19. The metal used to recover copper from an aqueous solution of copper sulphate is

Study the reaction given below and write the electronic configuration of Cl− when Cl is 2, 8, 7. Cl+e−→Cl−

What is electronic configuration .How to find the electronic configuration of metals as a ex.oxygen

The molar conductance of NaCl, HCl and CH3COONa at infinite dilution are 126.45, 426.16 and 91.0 S cm2 mol–1 respectively. The molar conductance of CH3COOH at infinite dilution is.Choose the right option for your answer.

Is it necessary to assume 'a' as one always while balancing any equation,

The salt used for performing bead test in qualitative inorganic analysis is:

38. The isotopic abundance of C-12 and C-14 is 98% and 2% respectively. What would be the number of C-14 isotope in 12g carbon sample?

Potential and Kinetic energy of an electron in 3rd orbit of H atom ?

Question 10Which of the following is the correct representation of electron dot structure of nitrogen(a) (b) (c)(d)