15280 + Interview Questions in Chemistry Page 112 InterviewSolution

5551.	Identify the products of the reaction given below. CH3COOH + Na2CO3→
Answer» Identify the products of the reaction given below. ${CH}_{3} COOH + {Na}_{2} {CO}_{3} \to$

Discussion

5552.	KCl, CuCl, CuCl2 melting point order
Answer» KCl, CuCl, CuCl2 melting point order

Discussion

5553.	why should we take the equivalent weight of oxygen as 8 when copper is oxidised to give copper oxide?
Answer» why should we take the equivalent weight of oxygen as 8 when copper is oxidised to give copper oxide?

Discussion

5554.	Write the name given to be bases that are highly soluble in water. Give an example.
Answer» Write the name given to be bases that are highly soluble in water. Give an example.

Discussion

5555.	Write the characteristics of p-block elements.
Answer» Write the characteristics of p-block elements.

Discussion

5556.	In the given bonds which one is most ionic
Answer» In the given bonds which one is most ionic

5556.

In the given bonds which one is most ionic

Answer»

In the given bonds which one is most ionic

Discussion

5557.	33. Titanium crystallizes in a fcc lattice . It reacts with carbon or hydrogen interstitially by allowing atoms of these elements to occupy holes in the host lattice . Hydrogen occupies tetrahedral holes but carbon occupies octahedral holes the formula of titanium carbide and hydride are
Answer» 33. Titanium crystallizes in a fcc lattice . It reacts with carbon or hydrogen interstitially by allowing atoms of these elements to occupy holes in the host lattice . Hydrogen occupies tetrahedral holes but carbon occupies octahedral holes the formula of titanium carbide and hydride are

Discussion

5558.	the number of gram atoms in 3.2gm of Ca is
Answer» the number of gram atoms in 3.2gm of Ca is

Discussion

5559.	(a) Friedrich Wohler converted an inorganic compound into an organic compound in the laboratory. (i) Give the name and formula of inorganic compound. (ii) Write the name and formula of organic compound formed. (b) Give the molecular formula of butane and mention the names of its two isomers. Name one fuel which contains both these isomers.
Answer» (a) Friedrich Wohler converted an inorganic compound into an organic compound in the laboratory. (i) Give the name and formula of inorganic compound. (ii) Write the name and formula of organic compound formed. (b) Give the molecular formula of butane and mention the names of its two isomers. Name one fuel which contains both these isomers.

Discussion

5560.	5. What is the limitations of williamson's ether synthesis?
Answer» 5. What is the limitations of williamson's ether synthesis?

Discussion

5561.

Match the pairs ‘A’ group ‘B’ group a. Xylitol 1. Pigment b. Citric acid 2. To impart sweetness c. Lycopene 3. Microbial restrictor d. Nycin 4. Protein binding emulsifier 5. To impart acidity

Answer» Match the pairs

‘A’ group		‘B’ group
a.	Xylitol	1.	Pigment
b.	Citric acid	2.	To impart sweetness
c.	Lycopene	3.	Microbial restrictor
d.	Nycin	4.	Protein binding emulsifier
		5.	To impart acidity

Discussion

5562.	Corrosion is ________ type of reaction.
Answer» Corrosion is ________ type of reaction.

Discussion

5563.	ntA nuclei of mass 220 amu in free state decays to emit an alpha particle.Kinetic energy of the alpha particle emitted is 5.4 MeV.The recoil energy of the daughter nucleus isn
Answer» ntA nuclei of mass 220 amu in free state decays to emit an alpha particle.Kinetic energy of the alpha particle emitted is 5.4 MeV.The recoil energy of the daughter nucleus isn

Discussion

5564.	X––KMnO4+Y––K2C2O4+Z––H2SO4→A––Mn04+B––C02+6K2SO4+S––H2O X,Y,Z,A,B and S are stoichiometric coefficients. Here X,Y,Z, A and B are respectively
Answer» $X - - K M n O_{4} + Y - - K_{2} C_{2} O_{4} + Z - - H_{2} S O_{4} \to A - - M n 0_{4} + B - - C 0_{2} + 6 K_{2} S O_{4} + S - - H_{2} O$ X,Y,Z,A,B and S are stoichiometric coefficients. Here X,Y,Z, A and B are respectively

Discussion

5565.	why atomic no. is more preferable than atomic mass ?
Answer» why atomic no. is more preferable than atomic mass ?

Discussion

5566.	What pH values can a universal indicator detect?
Answer» What pH values can a universal indicator detect?

Discussion

5567.	Akshit was crying because of an Ant bite ,which acid is secreted when Ants bite?
Answer» Akshit was crying because of an Ant bite ,which acid is secreted when Ants bite?

Discussion

5568.	33PH of solution of.1MCH3COONH4(aq) is (givenka(CH3COOH)=kb(NH4OH)=1.8×10^-5
Answer» 33PH of solution of.1MCH3COONH4(aq) is (givenka(CH3COOH)=kb(NH4OH)=1.8×10^-5

Discussion

5569.	The compound X on heating gives a colourless gas. The residue is dissolved in water to obtain Y. Excess CO2 isbubbled through aqueous solution of Y,Z is formed . Z on gentle heating givesback X. The compound X is:
Answer» The compound X on heating gives a colourless gas . The residue is dissolved in water to obtain Y. Excess CO₂ is bubbled through aqueous solution of Y,Z is formed . Z on gentle heating gives back X. The compound X is:

Discussion

5570.	98 Explain in detail the mechanism of Schmidt reaction?
Answer» 98 Explain in detail the mechanism of Schmidt reaction?

Discussion

5571.	Choose the word or phrase from the brackets which correctly completes the following statement: On moving from left to right in a given Period, the number of shells ___________________ (remains the same/increases/decreases).
Answer» Choose the word or phrase from the brackets which correctly completes the following statement: On moving from left to right in a given Period, the number of shells ___________________ (remains the same/increases/decreases).

5571.

Choose the word or phrase from the brackets which correctly completes the following statement: On moving from left to right in a given Period, the number of shells ___________________ (remains the same/increases/decreases).

Answer»

Choose the word or phrase from the brackets which correctly completes the following statement:

On moving from left to right in a given Period, the number of shells ___________________ (remains the same/increases/decreases).

Discussion

5572.	Identify the solute and solvent from the following solutions:i) Tincture of iodineii) Saline solution
Answer» Identify the solute and solvent from the following solutions: i) Tincture of iodine ii) Saline solution

Discussion

5573.	___ is used in making high-precision cutting devices for use in the therapeutic field.
Answer» ___ is used in making high-precision cutting devices for use in the therapeutic field.

Discussion

5574.	Explain the following : (a) tetravalency (b) catenation. [4 MARKS]
Answer» Explain the following : (a) tetravalency (b) catenation. [4 MARKS]

Discussion

5575.	While cooking, if the bottom of the utensil is getting blackened on the outside, it means that : (a) the food is not cooked completely. (b) the fuel is not burning completely. (c) the fuel is wet (d) the fuel is burning completely.
Answer» While cooking, if the bottom of the utensil is getting blackened on the outside, it means that : (a) the food is not cooked completely. (b) the fuel is not burning completely. (c) the fuel is wet (d) the fuel is burning completely.

Discussion

5576.	Do we have to learn each and every formula of derivatives by heart ?
Answer» Do we have to learn each and every formula of derivatives by heart ?

Discussion

5577.	ΔrG° for the following reactionI2(s) + H2S(g) 2HI(g) + S(s) at 298 K is,Given that, ΔfG°HI(g) = 1.8 kJ mol–1,ΔfG°H2S(g) = 33.8 kJ mol–1.
Answer» ΔrG° for the following reaction I2(s) + H2S(g) 2HI(g) + S(s) at 298 K is, Given that, ΔfG°HI(g) = 1.8 kJ mol–1, ΔfG°H2S(g) = 33.8 kJ mol–1.

Discussion

5578.	11 What is the difference between benzene hexachloride and hexachloro benzene?
Answer» 11 What is the difference between benzene hexachloride and hexachloro benzene?

Discussion

5579.	volume at NTP of oxygen required to completely burn 1kg of coal ?
Answer» volume at NTP of oxygen required to completely burn 1kg of coal ?

Discussion

5580.	what is the percentage strength of a solution of 100 volume hydrogen peroxid
Answer» what is the percentage strength of a solution of 100 volume hydrogen peroxid

Discussion

5581.	We cannot prepare lead sulphate by treating lead carbonate with dilute sulphuric acid.Why?
Answer» We cannot prepare lead sulphate by treating lead carbonate with dilute sulphuric acid.Why?

Discussion

5582.	In CH3CH2OH, the bond that undergoes heterolytic cleavage most readily is
Answer» In $C H_{3} C H_{2} O H$ , the bond that undergoes heterolytic cleavage most readily is

Discussion

5583.	The burning of magnesium strip resutls in the formation of magnesium oxide. What wil happen if we dissolve this magnesium oxide in sulphuric acid?
Answer» The burning of magnesium strip resutls in the formation of magnesium oxide. What wil happen if we dissolve this magnesium oxide in sulphuric acid?

Discussion

5584.	Which of the following metals can be cut with a knife?
Answer» Which of the following metals can be cut with a knife?

Discussion

5585.	What type of salts are produced by precipitation reactions?
Answer» What type of salts are produced by precipitation reactions?

Discussion

5586.	Which of the following is the correct general formula of alkyne?
Answer» Which of the following is the correct general formula of alkyne?

Discussion

5587.	AgNO3 + HCl → Product What precipitates as a product?
Answer» $A g N O_{3} + H C l \to P r o d u c t$ What precipitates as a product?

5587.

AgNO3 + HCl → Product What precipitates as a product?

Answer»

$A g N O_{3} + H C l \to P r o d u c t$

What precipitates as a product?

Discussion

5588.	How is the concentration of H3O+ ions affected when a solution of an acid is diluted? [1 MARK]
Answer» How is the concentration of $H_{3} O^{+}$ ions affected when a solution of an acid is diluted? [1 MARK]

Discussion

5589.	Which of the following will have the lowest pH?
Answer» Which of the following will have the lowest pH?

Discussion

5590.	Calculate the volume of CO2 evolved at NTP when 20g of CaCO3 is heated strongly.
Answer» Calculate the volume of $C O_{2}$ evolved at NTP when 20g of $C a C O_{3}$ is heated strongly.

Discussion

5591.	What are adhesives?
Answer» What are adhesives?

Discussion

5592.	Is H2 a covalent solid or molecular solid? If is a molecular solid then why it is not a covalent solid
Answer» Is H2 a covalent solid or molecular solid? If is a molecular solid then why it is not a covalent solid

Discussion

5593.	Question 5(d)Write word equations and then balanced equations for the reaction taking place when:(d) Dilute hydrochloric acid reacts with iron filings
Answer» Question 5(d) Write word equations and then balanced equations for the reaction taking place when: (d) Dilute hydrochloric acid reacts with iron filings

Discussion

5594.	62. Ionisation enthalpy antagonist to electron gain enthalpy?
Answer» 62. Ionisation enthalpy antagonist to electron gain enthalpy?

Discussion

5595.	___ is made by sandwiching a thin layer of synthetic vinyl plastic in between 2 or 3 flat sheets of glass and subjected to pressure.
Answer» ___ is made by sandwiching a thin layer of synthetic vinyl plastic in between 2 or 3 flat sheets of glass and subjected to pressure.

Discussion

5596.	Tooth decay occurs when pH of mouth is below:
Answer» Tooth decay occurs when pH of mouth is below:

Discussion

5597.	which of the following species has higher electron affinity ?a. Li b. O c. O-ve d.N
Answer» which of the following species has higher electron affinity ? a. Li b. O c. O-ve d.N

Discussion

5598.	The usefulness of a fertilizer depends upon percentage of nitrogen present in it. Find which of the following is a better fertilizer:(a) ammonium nitrate [NH4NO3](b) ammonium phosphate [(NH4)3PO4](N = 14, H = 1, O = 16, P = 31)
Answer» The usefulness of a fertilizer depends upon percentage of nitrogen present in it. Find which of the following is a better fertilizer: (a) ammonium nitrate [NH₄NO₃] (b) ammonium phosphate [(NH₄)₃PO₄] (N = 14, H = 1, O = 16, P = 31)

Discussion

5599.	The formula of the compound is A2B5.The no. Of electrons in the outermost orbits of A and B respectively are? How to solve?
Answer» The formula of the compound is A2B5.The no. Of electrons in the outermost orbits of A and B respectively are? How to solve?

Discussion

5600.

Which of the following carbonates is most stable? a) Li2CO3b) BeCO3 c) CaCO3 d) BaCO3

Answer»

Which of the following carbonates is most stable?

a) ${L i}_{2} C O_{3}$

b) $B e C O_{3}$

c) $C a C O_{3}$

d) $B a C O_{3}$

Discussion

Explore topic-wise InterviewSolutions in .

Identify the products of the reaction given below. CH3COOH + Na2CO3→

KCl, CuCl, CuCl2 melting point order

why should we take the equivalent weight of oxygen as 8 when copper is oxidised to give copper oxide?

Write the name given to be bases that are highly soluble in water. Give an example.

Write the characteristics of p-block elements.

In the given bonds which one is most ionic

33. Titanium crystallizes in a fcc lattice . It reacts with carbon or hydrogen interstitially by allowing atoms of these elements to occupy holes in the host lattice . Hydrogen occupies tetrahedral holes but carbon occupies octahedral holes the formula of titanium carbide and hydride are

the number of gram atoms in 3.2gm of Ca is

5. What is the limitations of williamson's ether synthesis?

Match the pairs ‘A’ group ‘B’ group a. Xylitol 1. Pigment b. Citric acid 2. To impart sweetness c. Lycopene 3. Microbial restrictor d. Nycin 4. Protein binding emulsifier 5. To impart acidity

Corrosion is ________ type of reaction.

ntA nuclei of mass 220 amu in free state decays to emit an alpha particle.Kinetic energy of the alpha particle emitted is 5.4 MeV.The recoil energy of the daughter nucleus isn

X––KMnO4+Y––K2C2O4+Z––H2SO4→A––Mn04+B––C02+6K2SO4+S––H2O X,Y,Z,A,B and S are stoichiometric coefficients. Here X,Y,Z, A and B are respectively

why atomic no. is more preferable than atomic mass ?

What pH values can a universal indicator detect?

Akshit was crying because of an Ant bite ,which acid is secreted when Ants bite?

33PH of solution of.1MCH3COONH4(aq) is (givenka(CH3COOH)=kb(NH4OH)=1.8×10^-5

The compound X on heating gives a colourless gas. The residue is dissolved in water to obtain Y. Excess CO2 isbubbled through aqueous solution of Y,Z is formed . Z on gentle heating givesback X. The compound X is:

98 Explain in detail the mechanism of Schmidt reaction?

Choose the word or phrase from the brackets which correctly completes the following statement: On moving from left to right in a given Period, the number of shells ___________________ (remains the same/increases/decreases).

Identify the solute and solvent from the following solutions:i) Tincture of iodineii) Saline solution

___ is used in making high-precision cutting devices for use in the therapeutic field.

Explain the following : (a) tetravalency (b) catenation. [4 MARKS]

While cooking, if the bottom of the utensil is getting blackened on the outside, it means that : (a) the food is not cooked completely. (b) the fuel is not burning completely. (c) the fuel is wet (d) the fuel is burning completely.

Do we have to learn each and every formula of derivatives by heart ?

ΔrG° for the following reactionI2(s) + H2S(g) 2HI(g) + S(s) at 298 K is,Given that, ΔfG°HI(g) = 1.8 kJ mol–1,ΔfG°H2S(g) = 33.8 kJ mol–1.

11 What is the difference between benzene hexachloride and hexachloro benzene?

volume at NTP of oxygen required to completely burn 1kg of coal ?

what is the percentage strength of a solution of 100 volume hydrogen peroxid

We cannot prepare lead sulphate by treating lead carbonate with dilute sulphuric acid.Why?

In CH3CH2OH, the bond that undergoes heterolytic cleavage most readily is

The burning of magnesium strip resutls in the formation of magnesium oxide. What wil happen if we dissolve this magnesium oxide in sulphuric acid?

Which of the following metals can be cut with a knife?

What type of salts are produced by precipitation reactions?

Which of the following is the correct general formula of alkyne?

AgNO3 + HCl → Product What precipitates as a product?

How is the concentration of H3O+ ions affected when a solution of an acid is diluted? [1 MARK]

Which of the following will have the lowest pH?

Calculate the volume of CO2 evolved at NTP when 20g of CaCO3 is heated strongly.

What are adhesives?

Is H2 a covalent solid or molecular solid? If is a molecular solid then why it is not a covalent solid

Question 5(d)Write word equations and then balanced equations for the reaction taking place when:(d) Dilute hydrochloric acid reacts with iron filings

62. Ionisation enthalpy antagonist to electron gain enthalpy?

___ is made by sandwiching a thin layer of synthetic vinyl plastic in between 2 or 3 flat sheets of glass and subjected to pressure.

Tooth decay occurs when pH of mouth is below:

which of the following species has higher electron affinity ?a. Li b. O c. O-ve d.N

The usefulness of a fertilizer depends upon percentage of nitrogen present in it. Find which of the following is a better fertilizer:(a) ammonium nitrate [NH4NO3](b) ammonium phosphate [(NH4)3PO4](N = 14, H = 1, O = 16, P = 31)

The formula of the compound is A2B5.The no. Of electrons in the outermost orbits of A and B respectively are? How to solve?

Which of the following carbonates is most stable? a) Li2CO3b) BeCO3 c) CaCO3 d) BaCO3