15280 + Interview Questions in Chemistry Page 174 InterviewSolution

8651.	In which void will the cation be accommodated if the radius ratio is less than 0.155?
Answer» In which void will the cation be accommodated if the radius ratio is less than 0.155?

Discussion

8652.	Which compound is used as a coating material in photographic films?
Answer» Which compound is used as a coating material in photographic films?

Discussion

8653.	What is the purpose of Haber's process? Name the gaseous inputs in the Haber process and state the ratio by volume in which the gases are mixed. What is done to increase the rate of the reaction in Haber process? Give two different ways by which the product can be separated from the reactants.
Answer» What is the purpose of Haber's process? Name the gaseous inputs in the Haber process and state the ratio by volume in which the gases are mixed. What is done to increase the rate of the reaction in Haber process? Give two different ways by which the product can be separated from the reactants.

Discussion

8654.	What is the pH of 0.05 ppm ammonia solution? Given Kb = 1.77 X 10^(-5).
Answer» What is the pH of 0.05 ppm ammonia solution? Given Kb = 1.77 X 10^(-5).

Discussion

8655.	are covalent bonds stronger than ionic bonds?
Answer» are covalent bonds stronger than ionic bonds?

Discussion

8656.	16.The rms speed of helium in ms-1 (atomic mass =4.0g mol-1 )at 400k is
Answer» 16.The rms speed of helium in ms-1 (atomic mass =4.0g mol-1 )at 400k is

Discussion

8657.	Find equivalant weight of the following a)mohrs salt b)Potash alum c)CO2 in oxidation-reduction reaction&acid-base reaction d)H2O2
Answer» Find equivalant weight of the following a)mohrs salt b)Potash alum c)CO2 in oxidation-reduction reaction&acid-base reaction d)H2O2

Discussion

8658.	Name oxide of one metal which is reduced by (give equation).(i) reduction with carbon.(ii) electrolytic reduction.(iii) reduction with heat alone.
Answer» Name oxide of one metal which is reduced by (give equation). (i) reduction with carbon. (ii) electrolytic reduction. (iii) reduction with heat alone.

Discussion

8659.	Choose the correct word or phrase from the brackets to complete the following sentences:(i) Heating ammonium chloride with sodium hydroxide produces ...... (ammonia, nitrogen).(ii) Heating solution of ammonium chloride sodium nitrite produces ...... (ammonia, nitrogen).
Answer» Choose the correct word or phrase from the brackets to complete the following sentences: (i) Heating ammonium chloride with sodium hydroxide produces ...... (ammonia, nitrogen). (ii) Heating solution of ammonium chloride sodium nitrite produces ...... (ammonia, nitrogen).

Discussion

8660.	Complete the given chemical equation.Al2O3+6HCl→2 _____ +3H2O
Answer» Complete the given chemical equation. $A l_{2} O_{3} + 6 H C l \to 2$ _____ $+ 3 H_{2} O$

Discussion

8661.	FeO+HCl→Salt+ H2O ; Name the salt in the given equation.
Answer» $F e O + H C l \to S a l t +$ $H_{2} O$ ; Name the salt in the given equation.

8661.

FeO+HCl→Salt+ H2O ; Name the salt in the given equation.

Answer»

$F e O + H C l \to S a l t +$ $H_{2} O$ ;

Name the salt in the given equation.

Discussion

8662.	Write down the physical properties of Bases.
Answer» Write down the physical properties of Bases.

Discussion

8663.	ntConsider the reactionn ntCl2(g) + 2Br-(aq) -------2Cl-(aq) +Br2n ntThe emf of the cell whenn nt[Cl-]=[Br2]=[Br-]=0.01 M and Cl2 gas at 1 atm pressure will be (E0 for the above reaction is= 0.29 volt)n nt1. 0.54 voltn nt2. 0.35 voltn nt3. 0.24 voltn nt4. -0.29 voltn
Answer» ntConsider the reactionn ntCl2(g) + 2Br-(aq) -------2Cl-(aq) +Br2n ntThe emf of the cell whenn nt[Cl-]=[Br2]=[Br-]=0.01 M and Cl2 gas at 1 atm pressure will be (E0 for the above reaction is= 0.29 volt)n nt1. 0.54 voltn nt2. 0.35 voltn nt3. 0.24 voltn nt4. -0.29 voltn

Discussion

8664.	Q In a 0.2 molar aqueous solution of aeak acid HX, the degree of ionization is0.3. The freezing point of the solution willbe nearest to
Answer» Q In a 0.2 molar aqueous solution of aeak acid HX, the degree of ionization is0.3. The freezing point of the solution willbe nearest to

Discussion

8665.	Q1:- How does reactivity series is used in single decomposition reaction ?
Answer» Q1:- How does reactivity series is used in single decomposition reaction ?

Discussion

8666.	32. In which of the following phosphorus atoms are at the corner of tetrahedron 1)P4 2)P4O6 3)P4O10 4)All
Answer» 32. In which of the following phosphorus atoms are at the corner of tetrahedron 1)P4 2)P4O6 3)P4O10 4)All

Discussion

8667.	Complete the following reaction CH3CH=CH2+H2SO4 → +H2O−−−−→Boil +H2SO4
Answer» Complete the following reaction $C H_{3} C H = C H_{2} + H_{2} S O_{4} \to$ $+ H_{2} O - --- \to B o i l$ $+ H_{2} S O_{4}$

Discussion

8668.	(a) Why do acids not show acidic behavior in the absence of water? (b) Why does an aqueous solution of an acid conduct electricity? (c) Why does distilled water not conduct electricity whereas rainwater does?
Answer» (a) Why do acids not show acidic behavior in the absence of water? (b) Why does an aqueous solution of an acid conduct electricity? (c) Why does distilled water not conduct electricity whereas rainwater does?

8668.

(a) Why do acids not show acidic behavior in the absence of water? (b) Why does an aqueous solution of an acid conduct electricity? (c) Why does distilled water not conduct electricity whereas rainwater does?

Answer»

(a) Why do acids not show acidic behavior in the absence of water?

(b) Why does an aqueous solution of an acid conduct electricity?

(c) Why does distilled water not conduct electricity whereas rainwater does?

Discussion

8669.	Name the anion [negative ion] present in the following compound:Compound D when warmed with dilute H2SO4 give a gas which turns acidified potassium dichromate solution green.
Answer» Name the anion [negative ion] present in the following compound: Compound D when warmed with dilute H₂SO₄ give a gas which turns acidified potassium dichromate solution green.

Discussion

8670.	mark an element that belongs to d block and have maximum 24 electrons with same spin ? some atomic no's are given below ? (1) 38 (2) 41 (3) 47 (4) 51
Answer» mark an element that belongs to d block and have maximum 24 electrons with same spin ? some atomic no's are given below ? (1) 38 (2) 41 (3) 47 (4) 51

Discussion

8671.	1) What is Valence Bond Theory (VBT) and Molecular Orbit Theory (MOT)? 2) What are polar and non polar compounds? 3) What is pulverisation?
Answer» 1) What is Valence Bond Theory (VBT) and Molecular Orbit Theory (MOT)? 2) What are polar and non polar compounds? 3) What is pulverisation?

Discussion

8672.	what is the meaning of catylists ?
Answer» what is the meaning of catylists ?

Discussion

8673.	Which of the following gets the minimum energy through the food chain in an ecosystem? (a) carnivore (b) large carnivore (c) producer (d) herbivore
Answer» Which of the following gets the minimum energy through the food chain in an ecosystem? (a) carnivore (b) large carnivore (c) producer (d) herbivore

8673.

Which of the following gets the minimum energy through the food chain in an ecosystem? (a) carnivore (b) large carnivore (c) producer (d) herbivore

Answer»

Which of the following gets the minimum energy through the food chain in an ecosystem?

(a) carnivore (b) large carnivore (c) producer (d) herbivore

Discussion

8674.	0.9 Al react with dil HCl to give H2.the volume of H_2 envolved at STP is ? explan it detail
Answer» 0.9 Al react with dil HCl to give H2.the volume of H_2 envolved at STP is ? explan it detail

Discussion

8675.

Chlorine, nitrogen, ammonia and sulphur dioxide gases are collected under the same conditions of temperature and pressure.Copy the following table which gives the volumes of the gases collected, and the number of molecules (X) in 20 litres of nitrogen. You are to complete the table by giving the number of molecules in the other gases, in terms of X. Gas Volume (litres) Number of molecules Chlorine Nitrogen Ammonia Sulphur dioxide 10 20 20 5 X

Answer» Chlorine, nitrogen, ammonia and sulphur dioxide gases are collected under the same conditions of temperature and pressure.

Copy the following table which gives the volumes of the gases collected, and the number of molecules (X) in 20 litres of nitrogen. You are to complete the table by giving the number of molecules in the other gases, in terms of X.

Gas	Volume (litres)	Number of molecules
Chlorine Nitrogen Ammonia Sulphur dioxide	10 20 20 5	X

Discussion

8676.	Compare the bond length and stability of the following species using MOT.(1) 0₂²⁻(2) N₂²⁻(3) H₂(4) B₂
Answer» Compare the bond length and stability of the following species using MOT. (1) 0₂²⁻ (2) N₂²⁻ (3) H₂ (4) B₂

Discussion

8677.	0.27 gram of an organic compound give on combustion 0.396 gram of CO2 and 0.216 gram of H2O . 0.36 gram of the same substance gave 48.88 ml of N2 at 290 kelvin and 740 mm pressure. Calculate the percentage composition of the compound.
Answer» 0.27 gram of an organic compound give on combustion 0.396 gram of CO2 and 0.216 gram of H2O . 0.36 gram of the same substance gave 48.88 ml of N2 at 290 kelvin and 740 mm pressure. Calculate the percentage composition of the compound.

Discussion

8678.	Which will be written first methyl or methylethyl?
Answer» Which will be written first methyl or methylethyl?

Discussion

8679.	Among halogens, the correct order of energy released in electron gain (electron gain enthalpy) is:
Answer» Among halogens, the correct order of energy released in electron gain (electron gain enthalpy) is:

Discussion

8680.	What changed do you observe in iron nails and color of copper sulphate solution when iron nails are does in copper sulphate solution.
Answer» What changed do you observe in iron nails and color of copper sulphate solution when iron nails are does in copper sulphate solution.

Discussion

8681.	Write the equations of chlorination of ethane.
Answer» Write the equations of chlorination of ethane.

Discussion

8682.	What happens when electrolytic solution is treated with any metal like silver or gold.
Answer» What happens when electrolytic solution is treated with any metal like silver or gold.

Discussion

8683.	The rate of decomposition of NH3 at 10 atm on platinum surface is zero order. What is rate of formation in Mper min of H2, if rate constant of reaction is 2 M per min?
Answer» The rate of decomposition of NH3 at 10 atm on platinum surface is zero order. What is rate of formation in Mper min of H2, if rate constant of reaction is 2 M per min?

Discussion

8684.	56. 0. 376 gram of aluminium reacted with an acid to displace 0. 468 L of H2 measured in standard conditions. Equivalent volume of H2 formed is (equivalent mass of aluminium is 9 gram equivalent inverse)
Answer» 56. 0. 376 gram of aluminium reacted with an acid to displace 0. 468 L of H2 measured in standard conditions. Equivalent volume of H2 formed is (equivalent mass of aluminium is 9 gram equivalent inverse)

Discussion

8685.	the number of nearest neighbours of each atom in ccp and bcc arrangement respectively is?
Answer» the number of nearest neighbours of each atom in ccp and bcc arrangement respectively is?

Discussion

8686.	N2O4 has a molecular weight 92. Find the total number of electrons in one gram mole of that oxide
Answer» $N_{2} O_{4}$ has a molecular weight 92. Find the total number of electrons in one gram mole of that oxide

Discussion

8687.	Écoutez et complétez les textes suivants.
Answer» Écoutez et complétez les textes suivants.

Discussion

8688.	When CuSO4.5H2O is heated the products are:
Answer» When $C u S O_{4} .5 H_{2} O$ is heated the products are:

Discussion

8689.	Which of the following is termed as the amount of solute dissolved in a given amount of solvent?
Answer» Which of the following is termed as the amount of solute dissolved in a given amount of solvent?

Discussion

8690.	51 The probability of finding a 1s electron is maximum A at the nucleus B at the Bohr radius C at a large distance from the nucleus D in between the nucleus and the first Bohr orbit
Answer» 51 The probability of finding a 1s electron is maximum A at the nucleus B at the Bohr radius C at a large distance from the nucleus D in between the nucleus and the first Bohr orbit

Discussion

8691.	Sir how to calculate valemcy of elements please help me
Answer» Sir how to calculate valemcy of elements please help me

Discussion

8692.	Basic copper carbonate formula
Answer» Basic copper carbonate formula

Discussion

8693.	Balance : H + CO2 ➡C6H12O6
Answer» Balance : H + CO₂➡C₆H₁₂O₆

8693.

Balance : H + CO2 ➡C6H12O6

Answer»

Balance :

H + CO₂➡C₆H₁₂O₆

Discussion

8694.	For the chlorination of which compound do we use Cl2 in dark and for which compound do we use Cl2 in the presence of Fe in dark?
Answer» For the chlorination of which compound do we use Cl2 in dark and for which compound do we use Cl2 in the presence of Fe in dark?

Discussion

8695.	Name the following:(a) a green coloured carbonate.(b) a steel grey coloured solid non-metal.(c) a nitrate which has no water of crystallization.(d) a sulphate insoluble in water.
Answer» Name the following: (a) a green coloured carbonate. (b) a steel grey coloured solid non-metal. (c) a nitrate which has no water of crystallization. (d) a sulphate insoluble in water.

Discussion

8696.	7.Which of the following pairs of elements would have a higher electron gain enthalpy and why? (A) O,O- (B) F,Cl.
Answer» 7.Which of the following pairs of elements would have a higher electron gain enthalpy and why? (A) O,O- (B) F,Cl.

Discussion

8697.	Which of the following is the chief ore of copper?
Answer» Which of the following is the chief ore of copper?

Discussion

8698.	What is the mass of 100 molecules of sucrose?
Answer» What is the mass of 100 molecules of sucrose?

Discussion

8699.	Which one of the following oxides is expected tobexhibit paramagnetic behaviour?\lbrack AIPMT (Prelims)-2005(1) CO2(2) SO2(3) CIO2(4) SiO2
Answer» Which one of the following oxides is expected tobexhibit paramagnetic behaviour?\lbrack AIPMT (Prelims)-2005(1) CO2(2) SO2(3) CIO2(4) SiO2

Discussion

8700.	Iron reacts with oxygen to form Fe2O3. If the atomic mass of iron is 56, the mass of oxygen that reacts with 2.5 moles of iron is
Answer» Iron reacts with oxygen to form $F e_{2} O_{3}$ . If the atomic mass of iron is 56, the mass of oxygen that reacts with 2.5 moles of iron is

Discussion

Explore topic-wise InterviewSolutions in .

In which void will the cation be accommodated if the radius ratio is less than 0.155?

Which compound is used as a coating material in photographic films?

What is the purpose of Haber's process? Name the gaseous inputs in the Haber process and state the ratio by volume in which the gases are mixed. What is done to increase the rate of the reaction in Haber process? Give two different ways by which the product can be separated from the reactants.

What is the pH of 0.05 ppm ammonia solution? Given Kb = 1.77 X 10^(-5).

are covalent bonds stronger than ionic bonds?

16.The rms speed of helium in ms-1 (atomic mass =4.0g mol-1 )at 400k is

Find equivalant weight of the following a)mohrs salt b)Potash alum c)CO2 in oxidation-reduction reaction&acid-base reaction d)H2O2

Name oxide of one metal which is reduced by (give equation).(i) reduction with carbon.(ii) electrolytic reduction.(iii) reduction with heat alone.

Choose the correct word or phrase from the brackets to complete the following sentences:(i) Heating ammonium chloride with sodium hydroxide produces ...... (ammonia, nitrogen).(ii) Heating solution of ammonium chloride sodium nitrite produces ...... (ammonia, nitrogen).

Complete the given chemical equation.Al2O3+6HCl→2 _____ +3H2O

FeO+HCl→Salt+ H2O ; Name the salt in the given equation.

Write down the physical properties of Bases.

ntConsider the reactionn ntCl2(g) + 2Br-(aq) -------2Cl-(aq) +Br2n ntThe emf of the cell whenn nt[Cl-]=[Br2]=[Br-]=0.01 M and Cl2 gas at 1 atm pressure will be (E0 for the above reaction is= 0.29 volt)n nt1. 0.54 voltn nt2. 0.35 voltn nt3. 0.24 voltn nt4. -0.29 voltn

Q In a 0.2 molar aqueous solution of aeak acid HX, the degree of ionization is0.3. The freezing point of the solution willbe nearest to

Q1:- How does reactivity series is used in single decomposition reaction ?

32. In which of the following phosphorus atoms are at the corner of tetrahedron 1)P4 2)P4O6 3)P4O10 4)All

Complete the following reaction CH3CH=CH2+H2SO4 → +H2O−−−−→Boil +H2SO4

(a) Why do acids not show acidic behavior in the absence of water? (b) Why does an aqueous solution of an acid conduct electricity? (c) Why does distilled water not conduct electricity whereas rainwater does?

Name the anion [negative ion] present in the following compound:Compound D when warmed with dilute H2SO4 give a gas which turns acidified potassium dichromate solution green.

mark an element that belongs to d block and have maximum 24 electrons with same spin ? some atomic no's are given below ? (1) 38 (2) 41 (3) 47 (4) 51

1) What is Valence Bond Theory (VBT) and Molecular Orbit Theory (MOT)? 2) What are polar and non polar compounds? 3) What is pulverisation?

what is the meaning of catylists ?

Which of the following gets the minimum energy through the food chain in an ecosystem? (a) carnivore (b) large carnivore (c) producer (d) herbivore

0.9 Al react with dil HCl to give H2.the volume of H_2 envolved at STP is ? explan it detail

Compare the bond length and stability of the following species using MOT.(1) 0₂²⁻(2) N₂²⁻(3) H₂(4) B₂

0.27 gram of an organic compound give on combustion 0.396 gram of CO2 and 0.216 gram of H2O . 0.36 gram of the same substance gave 48.88 ml of N2 at 290 kelvin and 740 mm pressure. Calculate the percentage composition of the compound.

Which will be written first methyl or methylethyl?

Among halogens, the correct order of energy released in electron gain (electron gain enthalpy) is:

What changed do you observe in iron nails and color of copper sulphate solution when iron nails are does in copper sulphate solution.

Write the equations of chlorination of ethane.

What happens when electrolytic solution is treated with any metal like silver or gold.

The rate of decomposition of NH3 at 10 atm on platinum surface is zero order. What is rate of formation in Mper min of H2, if rate constant of reaction is 2 M per min?

56. 0. 376 gram of aluminium reacted with an acid to displace 0. 468 L of H2 measured in standard conditions. Equivalent volume of H2 formed is (equivalent mass of aluminium is 9 gram equivalent inverse)

the number of nearest neighbours of each atom in ccp and bcc arrangement respectively is?

N2O4 has a molecular weight 92. Find the total number of electrons in one gram mole of that oxide

Écoutez et complétez les textes suivants.

When CuSO4.5H2O is heated the products are:

Which of the following is termed as the amount of solute dissolved in a given amount of solvent?

51 The probability of finding a 1s electron is maximum A at the nucleus B at the Bohr radius C at a large distance from the nucleus D in between the nucleus and the first Bohr orbit

Sir how to calculate valemcy of elements please help me

Basic copper carbonate formula

Balance : H + CO2 ➡C6H12O6

For the chlorination of which compound do we use Cl2 in dark and for which compound do we use Cl2 in the presence of Fe in dark?

Name the following:(a) a green coloured carbonate.(b) a steel grey coloured solid non-metal.(c) a nitrate which has no water of crystallization.(d) a sulphate insoluble in water.

7.Which of the following pairs of elements would have a higher electron gain enthalpy and why? (A) O,O- (B) F,Cl.

Which of the following is the chief ore of copper?

What is the mass of 100 molecules of sucrose?

Which one of the following oxides is expected tobexhibit paramagnetic behaviour?\lbrack AIPMT (Prelims)-2005(1) CO2(2) SO2(3) CIO2(4) SiO2

Iron reacts with oxygen to form Fe2O3. If the atomic mass of iron is 56, the mass of oxygen that reacts with 2.5 moles of iron is