15280 + Interview Questions in Chemistry Page 135 InterviewSolution

6701.	what is circular current loop?
Answer» what is circular current loop?

Discussion

6702.	90.in sp2 hybridisation there is always the formation of p and sigma bonds and pure orbitald
Answer» 90.in sp2 hybridisation there is always the formation of p and sigma bonds and pure orbitald

Discussion

6703.	If the radius of a metal atom (A) is 5 pm and the radius of an electronegative atom (B) is 20 pm, then in the unit cell(1) A in octahedral voids, B in FCC unit(2) A in FCC unit, B in the tetrahedral void(3) A in BCC unit, B in the cubic void(4) A in the tetrahedral void, B in FCC unit
Answer» If the radius of a metal atom (A) is 5 pm and the radius of an electronegative atom (B) is 20 pm, then in the unit cell (1) A in octahedral voids, B in FCC unit (2) A in FCC unit, B in the tetrahedral void (3) A in BCC unit, B in the cubic void (4) A in the tetrahedral void, B in FCC unit

6703.

If the radius of a metal atom (A) is 5 pm and the radius of an electronegative atom (B) is 20 pm, then in the unit cell(1) A in octahedral voids, B in FCC unit(2) A in FCC unit, B in the tetrahedral void(3) A in BCC unit, B in the cubic void(4) A in the tetrahedral void, B in FCC unit

Answer»

If the radius of a metal atom (A) is 5 pm and the radius of an electronegative atom (B) is 20 pm, then in the unit cell

(1) A in octahedral voids, B in FCC unit

(2) A in FCC unit, B in the tetrahedral void

(3) A in BCC unit, B in the cubic void

(4) A in the tetrahedral void, B in FCC unit

Discussion

6704.	Shortcut for balancing the equation. Or Easiest method for balancing the equation
Answer» Shortcut for balancing the equation. Or Easiest method for balancing the equation

6704.

Shortcut for balancing the equation. Or Easiest method for balancing the equation

Answer»

Shortcut for balancing the equation.

Or

Easiest method for balancing the equation

Discussion

6705.	During electrolytic dissociation of sodium chloride, the sodium ions are discharged at the cathode. Give reasons.
Answer» During electrolytic dissociation of sodium chloride, the sodium ions are discharged at the cathode. Give reasons.

Discussion

6706.	The following questions relate to the electroplating of an article with silver.(a) Name the electrode formed by the article which is to be plated.(b) What ions must be present in the electrolyte?(c) What should be the nature of the anode?
Answer» The following questions relate to the electroplating of an article with silver. (a) Name the electrode formed by the article which is to be plated. (b) What ions must be present in the electrolyte? (c) What should be the nature of the anode?

Discussion

6707.	Atomic mass of bromine is 80 g. The mass of four moles of molecular bromine (Br2) is:
Answer» Atomic mass of bromine is 80 g. The mass of four moles of molecular bromine (Br₂) is:

Discussion

6708.	Which of the following method is used in the preparation of a base?
Answer» Which of the following method is used in the preparation of a base?

Discussion

6709.	density of iron is 7.8 g/cc and induced magnetic field in iron is 1Tesla then magnetic dipole moment of each iron atom 1)57x10^{-24 }Am^2 2)9.5x10^{-24}Am^2 3)21x10^{-24}Am^2 4)37x10^{-24}Am^{
Answer» density of iron is 7.8 g/cc and induced magnetic field in iron is 1Tesla then magnetic dipole moment of each iron atom 1)57x10^{-24 }Am^2 2)9.5x10^{-24}Am^2 3)21x10^{-24}Am^2 4)37x10^{-24}Am^{

Discussion

6710.	The pH of gastric juices released during digestion is:
Answer» The pH of gastric juices released during digestion is:

Discussion

6711.	The correct arrangement of increasing order of atomic radius among Na, K, Mg, Rb is:
Answer» The correct arrangement of increasing order of atomic radius among Na, K, Mg, Rb is:

Discussion

6712.	Why does oxygen only forms only 2 hydrogen bonds
Answer» Why does oxygen only forms only 2 hydrogen bonds

Discussion

6713.	M is an element in the form of a powder. M burns in oxygen and the product obtained is soluble in water. The solution is tested with litmus. Write down only the word which will correctly complete each of the following sentences. (a) If M is a metal, then the litmus will turn ........... (b) If M is a non-metal, then the litmus will turn ......... (c) If M is a reactive metal, then ........... will be evolved when M reacts with dilute sulphuric acid. (d) If M is a metal, it will form ........ oxide, which will form ....... solution with water. (e) If M is a non-metal, it will not conduct electricity in the form of.........
Answer» M is an element in the form of a powder. M burns in oxygen and the product obtained is soluble in water. The solution is tested with litmus. Write down only the word which will correctly complete each of the following sentences. (a) If M is a metal, then the litmus will turn ........... (b) If M is a non-metal, then the litmus will turn ......... (c) If M is a reactive metal, then ........... will be evolved when M reacts with dilute sulphuric acid. (d) If M is a metal, it will form ........ oxide, which will form ....... solution with water. (e) If M is a non-metal, it will not conduct electricity in the form of.........

6713.

M is an element in the form of a powder. M burns in oxygen and the product obtained is soluble in water. The solution is tested with litmus. Write down only the word which will correctly complete each of the following sentences. (a) If M is a metal, then the litmus will turn ........... (b) If M is a non-metal, then the litmus will turn ......... (c) If M is a reactive metal, then ........... will be evolved when M reacts with dilute sulphuric acid. (d) If M is a metal, it will form ........ oxide, which will form ....... solution with water. (e) If M is a non-metal, it will not conduct electricity in the form of.........

Answer»

M is an element in the form of a powder. M burns in oxygen and the product obtained is soluble in water. The solution is tested with litmus. Write down only the word which will correctly complete each of the following sentences.

(a) If M is a metal, then the litmus will turn ...........

(b) If M is a non-metal, then the litmus will turn .........

(c) If M is a reactive metal, then ........... will be evolved when M reacts with dilute sulphuric acid.

(d) If M is a metal, it will form ........ oxide, which will form ....... solution with water.

(e) If M is a non-metal, it will not conduct electricity in the form of.........

Discussion

6714.	Name the compound prepared from : (a) sodium propionate, (b) methyl iodide and (c) ethyl bromide. Write a balanced equation for the same.
Answer» Name the compound prepared from : (a) sodium propionate, (b) methyl iodide and (c) ethyl bromide. Write a balanced equation for the same.

Discussion

6715.	Sigma bond is generally formed first except (B2 and C2). Elaborate the statement
Answer» Sigma bond is generally formed first except (B2 and C2). Elaborate the statement

Discussion

6716.	Functional isomers of CH3−CH2−CH2−COOH
Answer» Functional isomers of $C H_{3} - C H_{2} - C H_{2} - C O O H$

Discussion

6717.	What is Y in the reaction given below ? CH3−CH2OHAlkaline KMnO4+Heat−−−−−−−−−−−−−−−−→or acidified K2Cr2O7+HeatY
Answer» What is Y in the reaction given below ? $C H_{3} - C H_{2} O H Alkaline K M n O_{4} +Heat - --------------- \to or acidified K_{2} C r_{2} O_{7} +Heat Y$

6717.

What is Y in the reaction given below ? CH3−CH2OHAlkaline KMnO4+Heat−−−−−−−−−−−−−−−−→or acidified K2Cr2O7+HeatY

Answer»

What is Y in the reaction given below ?

$C H_{3} - C H_{2} O H Alkaline K M n O_{4} +Heat - --------------- \to or acidified K_{2} C r_{2} O_{7} +Heat Y$

Discussion

6718.	The hybridisations of atomic orbitals of nitrogen in NO+2, NO−3, and NH+4 respectively are
Answer» The hybridisations of atomic orbitals of nitrogen in $N O_{2}^{+}, N O_{3}^{-}, and N H_{4}^{+}$ respectively are

Discussion

6719.	Complete the following flowchart that traces the contributory processes leading to the development of the first modern drug from the willow tree.
Answer» Complete the following flowchart that traces the contributory processes leading to the development of the first modern drug from the willow tree.

6719.

Complete the following flowchart that traces the contributory processes leading to the development of the first modern drug from the willow tree.

Answer»

Complete the following flowchart that traces the contributory processes leading to the development of the first modern drug from the willow tree.

Discussion

6720.	Why is it advised to freshly prepare ferrous sulphate for experiment.
Answer» Why is it advised to freshly prepare ferrous sulphate for experiment.

Discussion

6721.	Fill in the blanks in the following sentences: (i) Two atoms of the same element combine to form a molecule. The bond between them is known as .. bond. (ii) Two chlorine atoms combine to form a molecule. The bond between them is known as.... (iii) In the formation of an oxygen molecule, ... electrons are shared by each atom of oxygen. (iv) In the formation of a N2 molecule, ... electrons are shared by each atom on nitrogen. (v) The number of single covalent bonds in C2H2 molecule are.... (vi) Melting points and boiling points of ionic compounds are generally ... Than those of covalent compounds.
Answer» Fill in the blanks in the following sentences: (i) Two atoms of the same element combine to form a molecule. The bond between them is known as .. bond. (ii) Two chlorine atoms combine to form a molecule. The bond between them is known as.... (iii) In the formation of an oxygen molecule, ... electrons are shared by each atom of oxygen. (iv) In the formation of a $N_{2}$ molecule, ... electrons are shared by each atom on nitrogen. (v) The number of single covalent bonds in $C_{2} H_{2}$ molecule are.... (vi) Melting points and boiling points of ionic compounds are generally ... Than those of covalent compounds.

Discussion

6722.	Sample paper of acids bases and salts full chapter
Answer» Sample paper of acids bases and salts full chapter

Discussion

6723.	Q1 Calculate the mass of hydrogen evolved by passing a current of 0.5A for 40 minutes through acidulated water.
Answer» Q1 Calculate the mass of hydrogen evolved by passing a current of 0.5A for 40 minutes through acidulated water.

Discussion

6724.	Give names of two natural polymers and write the place of their occurrance.
Answer» Give names of two natural polymers and write the place of their occurrance.

Discussion

6725.	__ is a type of iron which contains 0.1% to 0.5% impurity and is used for making nuts and bolts.
Answer» __ is a type of iron which contains 0.1% to 0.5% impurity and is used for making nuts and bolts.

Discussion

6726.	What is a displacement reaction?
Answer» What is a displacement reaction?

Discussion

6727.	What are the causes for (a) Temporary hardness (b) Permanent hardness
Answer» What are the causes for (a) Temporary hardness (b) Permanent hardness

6727.

What are the causes for (a) Temporary hardness (b) Permanent hardness

Answer»

What are the causes for

(a) Temporary hardness

(b) Permanent hardness

Discussion

6728.	5. The enolic form of acetone contains how many sigma, pi bonds and lone pairs?
Answer» 5. The enolic form of acetone contains how many sigma, pi bonds and lone pairs?

Discussion

6729.	92 For a first order reaction A to P , the temp (T) depend ent rate constant (k) was found to follow the equation log k=-(2000)/T +6. The pre exponential factor A and the activation energy E are
Answer» 92 For a first order reaction A to P , the temp (T) depend ent rate constant (k) was found to follow the equation log k=-(2000)/T +6. The pre exponential factor A and the activation energy E are

Discussion

6730.	Question 10 Which one of the following properties is not generally exhibited by ionic compounds? (a) Solubility in water. (b) Electrical conductivity in solid state. (c) High melting and boiling points. (d) Electrical conductivity in molten state.
Answer» Question 10 Which one of the following properties is not generally exhibited by ionic compounds? (a) Solubility in water. (b) Electrical conductivity in solid state. (c) High melting and boiling points. (d) Electrical conductivity in molten state.

Discussion

6731.	The final solution contains
Answer» The final solution contains

Discussion

6732.	The correct decreasing order of priority for the functional groups of organic compounds in the IUPAC system of nomenclature is
Answer» The correct decreasing order of priority for the functional groups of organic compounds in the IUPAC system of nomenclature is

Discussion

6733.	Write balanced equation for the following reactions:Aluminium powder is warmed with hot and concentrated caustic soda solution.
Answer» Write balanced equation for the following reactions: Aluminium powder is warmed with hot and concentrated caustic soda solution.

Discussion

6734.	Salt can be recovered from its solution by evaporation. Suggest some other technique for the same?
Answer» Salt can be recovered from its solution by evaporation. Suggest some other technique for the same?

Discussion

6735.	Why Sodium and potassium inspite of being metals float on the water?
Answer» Why Sodium and potassium inspite of being metals float on the water?

Discussion

6736.	The factor not affecting ionisation enthalpy is:
Answer» The factor not affecting ionisation enthalpy is:

Discussion

6737.	Find the number of phases involved in the thermal decomposition of kclo3 in the presence of mno2
Answer» Find the number of phases involved in the thermal decomposition of kclo3 in the presence of mno2

Discussion

6738.	(a) What are ionic compounds and covalent compounds? Give the name and formula of one ionic compound and one covalent compound.(b) Write the major points of difference between ionic compounds and covalent compounds.
Answer» (a) What are ionic compounds and covalent compounds? Give the name and formula of one ionic compound and one covalent compound. (b) Write the major points of difference between ionic compounds and covalent compounds.

Discussion

6739.	Define environmental science.
Answer» Define environmental science.

Discussion

6740.	For strong acid base neutralisation energy for 1 mole H2O formation is -57.1 kJ.If 0.25 mole of a strong monoprotic acid is reacted with 0.5 mole of strong base then enthalpy of neutralisation is
Answer» For strong acid base neutralisation energy for 1 mole H2O formation is -57.1 kJ.If 0.25 mole of a strong monoprotic acid is reacted with 0.5 mole of strong base then enthalpy of neutralisation is

Discussion

6741.	Both brass and bronze contain copper as major constituents.Name other elements in these alloys.
Answer» Both brass and bronze contain copper as major constituents.Name other elements in these alloys.

Discussion

6742.	bond order of N-O in NO3
Answer» bond order of N-O in NO3

Discussion

6743.	CuO+H2→Cu+H2O Considering the above reaction, the element that is oxidized is A and the element that is reduced is B. The elements B and A respectively are ____________ and _____________.
Answer» $C u O + H_{2} \to C u + H_{2} O$ Considering the above reaction, the element that is oxidized is A and the element that is reduced is B. The elements B and A respectively are ____________ and _____________.

6743.

CuO+H2→Cu+H2O Considering the above reaction, the element that is oxidized is A and the element that is reduced is B. The elements B and A respectively are and _.

Answer»

$C u O + H_{2} \to C u + H_{2} O$

Considering the above reaction, the element that is oxidized is A and the element that is reduced is B. The elements B and A respectively are ____________ and _____________.

Discussion

6744.	Which combination is best explained by the coordinate covalent bond?
Answer» Which combination is best explained by the coordinate covalent bond?

Discussion

6745.	The density of liquid butane is 0.8 g/ml. 1450 ml of this will require how many moles of O2 for complete burning into CO2 and H2O.
Answer» The density of liquid butane is 0.8 g/ml. 1450 ml of this will require how many moles of O2 for complete burning into CO2 and H2O.

Discussion

6746.	why water is a amphoteric compound? Give reason
Answer» why water is a amphoteric compound? Give reason

Discussion

6747.	Oxides of moderately reactive metals like Zinc, Iron, Nickel, Tin and Copper etc. are reduced by using
Answer» Oxides of moderately reactive metals like Zinc, Iron, Nickel, Tin and Copper etc. are reduced by using

Discussion

6748.	On October 1, 2000, a Truck was purchased for Rs 8,00,000 by Laxmi Transport Ltd. Depreciation was provided at 15% per annum on the diminishing balance basis on this truck. On December 31, 2003, this truck was sold for Rs 5,00,000. Accounts are closed on 31st March every year. Prepare a Truck account for the four years.
Answer» On October 1, 2000, a Truck was purchased for Rs 8,00,000 by Laxmi Transport Ltd. Depreciation was provided at $15 %$ per annum on the diminishing balance basis on this truck. On December 31, 2003, this truck was sold for Rs 5,00,000. Accounts are closed on 31st March every year. Prepare a Truck account for the four years.

Discussion

6749.	In the laboratory, temperatures above 200°C are not used in general because:
Answer» In the laboratory, temperatures above 200°C are not used in general because:

Discussion

6750.	which of the following solution will have highest specific conduc†an ce? a)0.01M CH3COOH 2)0.01MNH4OH 3)0.01M NaCl 4)0.01M K2SO
Answer» which of the following solution will have highest specific conduc†an ce? a)0.01M CH3COOH 2)0.01MNH4OH 3)0.01M NaCl 4)0.01M K2SO

Discussion

Explore topic-wise InterviewSolutions in .

what is circular current loop?

90.in sp2 hybridisation there is always the formation of p and sigma bonds and pure orbitald

If the radius of a metal atom (A) is 5 pm and the radius of an electronegative atom (B) is 20 pm, then in the unit cell(1) A in octahedral voids, B in FCC unit(2) A in FCC unit, B in the tetrahedral void(3) A in BCC unit, B in the cubic void(4) A in the tetrahedral void, B in FCC unit

Shortcut for balancing the equation. Or Easiest method for balancing the equation

During electrolytic dissociation of sodium chloride, the sodium ions are discharged at the cathode. Give reasons.

The following questions relate to the electroplating of an article with silver.(a) Name the electrode formed by the article which is to be plated.(b) What ions must be present in the electrolyte?(c) What should be the nature of the anode?

Atomic mass of bromine is 80 g. The mass of four moles of molecular bromine (Br2) is:

Which of the following method is used in the preparation of a base?

density of iron is 7.8 g/cc and induced magnetic field in iron is 1Tesla then magnetic dipole moment of each iron atom 1)57x10^{-24 }Am^2 2)9.5x10^{-24}Am^2 3)21x10^{-24}Am^2 4)37x10^{-24}Am^{

The pH of gastric juices released during digestion is:

The correct arrangement of increasing order of atomic radius among Na, K, Mg, Rb is:

Why does oxygen only forms only 2 hydrogen bonds

Name the compound prepared from : (a) sodium propionate, (b) methyl iodide and (c) ethyl bromide. Write a balanced equation for the same.

Sigma bond is generally formed first except (B2 and C2). Elaborate the statement

Functional isomers of CH3−CH2−CH2−COOH

What is Y in the reaction given below ? CH3−CH2OHAlkaline KMnO4+Heat−−−−−−−−−−−−−−−−→or acidified K2Cr2O7+HeatY

The hybridisations of atomic orbitals of nitrogen in NO+2, NO−3, and NH+4 respectively are

Complete the following flowchart that traces the contributory processes leading to the development of the first modern drug from the willow tree.

Why is it advised to freshly prepare ferrous sulphate for experiment.

Sample paper of acids bases and salts full chapter

Q1 Calculate the mass of hydrogen evolved by passing a current of 0.5A for 40 minutes through acidulated water.

Give names of two natural polymers and write the place of their occurrance.

__ is a type of iron which contains 0.1% to 0.5% impurity and is used for making nuts and bolts.

What is a displacement reaction?

What are the causes for (a) Temporary hardness (b) Permanent hardness

5. The enolic form of acetone contains how many sigma, pi bonds and lone pairs?

92 For a first order reaction A to P , the temp (T) depend ent rate constant (k) was found to follow the equation log k=-(2000)/T +6. The pre exponential factor A and the activation energy E are

Question 10 Which one of the following properties is not generally exhibited by ionic compounds? (a) Solubility in water. (b) Electrical conductivity in solid state. (c) High melting and boiling points. (d) Electrical conductivity in molten state.

The final solution contains

The correct decreasing order of priority for the functional groups of organic compounds in the IUPAC system of nomenclature is

Write balanced equation for the following reactions:Aluminium powder is warmed with hot and concentrated caustic soda solution.

Salt can be recovered from its solution by evaporation. Suggest some other technique for the same?

Why Sodium and potassium inspite of being metals float on the water?

The factor not affecting ionisation enthalpy is:

Find the number of phases involved in the thermal decomposition of kclo3 in the presence of mno2

(a) What are ionic compounds and covalent compounds? Give the name and formula of one ionic compound and one covalent compound.​(b) Write the major points of difference between ionic compounds and covalent compounds.

Define environmental science.

For strong acid base neutralisation energy for 1 mole H2O formation is -57.1 kJ.If 0.25 mole of a strong monoprotic acid is reacted with 0.5 mole of strong base then enthalpy of neutralisation is

Both brass and bronze contain copper as major constituents.Name other elements in these alloys.

bond order of N-O in NO3

CuO+H2→Cu+H2O Considering the above reaction, the element that is oxidized is A and the element that is reduced is B. The elements B and A respectively are ____________ and _____________.

Which combination is best explained by the coordinate covalent bond?

The density of liquid butane is 0.8 g/ml. 1450 ml of this will require how many moles of O2 for complete burning into CO2 and H2O.

why water is a amphoteric compound? Give reason

Oxides of moderately reactive metals like Zinc, Iron, Nickel, Tin and Copper etc. are reduced by using

In the laboratory, temperatures above 200°C are not used in general because:

which of the following solution will have highest specific conduc†an ce? a)0.01M CH3COOH 2)0.01MNH4OH 3)0.01M NaCl 4)0.01M K2SO

(a) What are ionic compounds and covalent compounds? Give the name and formula of one ionic compound and one covalent compound.(b) Write the major points of difference between ionic compounds and covalent compounds.

CuO+H2→Cu+H2O Considering the above reaction, the element that is oxidized is A and the element that is reduced is B. The elements B and A respectively are and _.