46295 + Interview Questions in Chemistry Page 62 InterviewSolution

3051.	The electrolytic decomposition of dilute sulphonic acid with platinum electrode in cathodic reaction is [MNR 1988; UPSEAT 1999, 2002]
Answer» The electrolytic decomposition of dilute sulphonic acid with platinum electrode in cathodic reaction is [MNR 1988; UPSEAT 1999, 2002]

3051.

The electrolytic decomposition of dilute sulphonic acid with platinum electrode in cathodic reaction is [MNR 1988; UPSEAT 1999, 2002]

Answer»

The electrolytic decomposition of dilute sulphonic acid with platinum

electrode in cathodic reaction is

[MNR 1988; UPSEAT 1999, 2002]

3052.	The function f(x)=ex−1 is tto be solved using Newton-Raphson method. If the initial value of x0 is taken as 1.0, then the absolute error observed at 2nd iteration is0.06
Answer» The function $f (x) = e^{x} - 1$ is tto be solved using Newton-Raphson method. If the initial value of $x_{0}$ is taken as 1.0, then the absolute error observed at 2nd iteration is 0.06

Discussion

3053.	2. What are bond angle a.K2Cr2.O7
Answer» 2. What are bond angle a.K2Cr2.O7

Discussion

3054.	What is titration? What is the n factor of COOH \| COOH?
Answer» What is titration? What is the n factor of COOH \| COOH?

Discussion

3055.	The number of α and β particles emitted in the conversion of 90Th232 to 82Pb208 are
Answer» The number of $α$ and $β$ particles emitted in the conversion of $_{90} T h^{232}$ to $_{82} P b^{208}$ are

Discussion

3056.	A certain diatomic molecule AB has dipole moment 1.6 D and internuclear distance is 100 pm . The percentage of electronic charge existing on more electronegative atom is (a) 33% (b) 25% (c) 50% (d) 10%
Answer» A certain diatomic molecule AB has dipole moment 1.6 D and internuclear distance is 100 pm . The percentage of electronic charge existing on more electronegative atom is (a) 33% (b) 25% (c) 50% (d) 10%

Discussion

3057.	An organic compound of molar mass greater than 100 contains only C, H and N. The percentage of C is 6 times that of H while the sum of percentages of C and H is 1.5 times that of N. What is the least molar mass of the compound?
Answer» An organic compound of molar mass greater than $100$ contains only C, H and N. The percentage of C is 6 times that of H while the sum of percentages of C and H is 1.5 times that of N. What is the least molar mass of the compound?

Discussion

3058.	In which of the following pairs , the first electron gain enthalpy is endothermic process for both ?1) N , O2) Be , N 3) F , Ne 4) P , Se
Answer» In which of the following pairs , the first electron gain enthalpy is endothermic process for both ? 1) N , O 2) Be , N 3) F , Ne 4) P , Se

Discussion

3059.	The number of antibonding electron pairs in O2-?
Answer» The number of antibonding electron pairs in O2-?

Discussion

3060.	(d)1267.Cyclononatetraenyl cationCyclononatetraenide anionNumber of n-electrons in (A) and (B) respectively are(a) 8, 8(G) 10, 8(b) 8, 10(d) 10, 10168. Which of the following compound has highest dipole moment?169, Which of the following is not aromatic?(d)None of these
Answer» (d)1267.Cyclononatetraenyl cationCyclononatetraenide anionNumber of n-electrons in (A) and (B) respectively are(a) 8, 8(G) 10, 8(b) 8, 10(d) 10, 10168. Which of the following compound has highest dipole moment?169, Which of the following is not aromatic?(d)None of these

Discussion

3061.	In a 50 mL solution of H2O2 an excess of KI and dilute H2SO4 were added. The I2 liberated required 20 mL of 0.1N Na2S2O3 for complete reaction.Calculate the strength of H2O2 in grams per litre.
Answer» In a $50 m L$ solution of $H_{2} O_{2}$ an excess of $K I$ and dilute $H_{2} S O_{4}$ were added. The $I_{2}$ liberated required $20 m L$ of $0.1 N N a_{2} S_{2} O_{3}$ for complete reaction. Calculate the strength of $H_{2} O_{2}$ in grams per litre.

Discussion

3062.	In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct answer out of the following choices. (a) Assertion and Reason both are correct statements and Reason is correct explanation for Assertion. (b) Assertion and Reason both are correct satements but Reason is not correct explanation for Assertion. (c) Assertion is correct statement but Reason is wrong statement (d) Assertion is wrong statement but Reason is correct statement. Assertion (A) The total number of atoms present in a simple cubic unit cell is one. Reason (R) Simple cubic unit cell has atoms at its corners, each of which is shared between eight adjacent cells.
Answer» In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct answer out of the following choices. (a) Assertion and Reason both are correct statements and Reason is correct explanation for Assertion. (b) Assertion and Reason both are correct satements but Reason is not correct explanation for Assertion. (c) Assertion is correct statement but Reason is wrong statement (d) Assertion is wrong statement but Reason is correct statement. Assertion (A) The total number of atoms present in a simple cubic unit cell is one. Reason (R) Simple cubic unit cell has atoms at its corners, each of which is shared between eight adjacent cells.

3062.

In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct answer out of the following choices. (a) Assertion and Reason both are correct statements and Reason is correct explanation for Assertion. (b) Assertion and Reason both are correct satements but Reason is not correct explanation for Assertion. (c) Assertion is correct statement but Reason is wrong statement (d) Assertion is wrong statement but Reason is correct statement. Assertion (A) The total number of atoms present in a simple cubic unit cell is one. Reason (R) Simple cubic unit cell has atoms at its corners, each of which is shared between eight adjacent cells.

Answer»

In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct answer out of the following choices.

(a) Assertion and Reason both are correct statements and Reason is correct explanation for Assertion.

(b) Assertion and Reason both are correct satements but Reason is not correct explanation for Assertion.

(c) Assertion is correct statement but Reason is wrong statement

(d) Assertion is wrong statement but Reason is correct statement.

Assertion (A) The total number of atoms present in a simple cubic unit cell is one.

Reason (R) Simple cubic unit cell has atoms at its corners, each of which is shared between eight adjacent cells.

Discussion

3063.	The final product formed by the ozonolysis of compound RCH=CR2 is
Answer» The final product formed by the ozonolysis of compound $R C H = C R_{2}$ is

Discussion

3064.	What happens when ethylamine is made to react with excess formic acid and formaldehyde?
Answer» What happens when ethylamine is made to react with excess formic acid and formaldehyde?

Discussion

3065.	Formula of hollow cyclinder
Answer» Formula of hollow cyclinder

Discussion

3066.	The correct order of nucleophilicity among the following is :
Answer» The correct order of nucleophilicity among the following is :

Discussion

3067.	A metal oxide contains 80% metal. What is the equivalent weight of the metal ?
Answer» A metal oxide contains 80% metal. What is the equivalent weight of the metal ?

Discussion

3068.	Write the balanced chemical equation when glucose reacts with oxygen.
Answer» Write the balanced chemical equation when glucose reacts with oxygen.

Discussion

3069.	The correct order of acidic strength in the following compounds
Answer» The correct order of acidic strength in the following compounds

Discussion

3070.	"x" will be
Answer» "x" will be

Discussion

3071.	20. Assertion and reason (A) All F-S-F angle in SF4 greater than 90 degree but less than 180 degree (R) the lone pair-bond pair repulsion is weaker than bond pair-bond pair repulsion
Answer» 20. Assertion and reason (A) All F-S-F angle in SF4 greater than 90 degree but less than 180 degree (R) the lone pair-bond pair repulsion is weaker than bond pair-bond pair repulsion

Discussion

3072.	The most stable carbanion among the following is -
Answer» The most stable carbanion among the following is -

Discussion

3073.	Ionisation enthalpy order F >Cl>Cl {}^- >F{}^{}{}
Answer» Ionisation enthalpy order F >Cl>Cl {}^- >F{}^{}{}

Discussion

3074.	which group has greater -R effect, -COOH or -SO_3H ?
Answer» which group has greater -R effect, -COOH or -SO_3H ?

Discussion

3075.	How to find order of magnitude of a substance?
Answer» How to find order of magnitude of a substance?

Discussion

3076.	For the following reaction, the major product 'Z' is :
Answer» For the following reaction, the major product 'Z' is :

Discussion

3077.	What is the meaning of no slipping condition in rotation?
Answer» What is the meaning of no slipping condition in rotation?

Discussion

3078.	24 How will we know which compounds undergo E1 or E2 mechanism?
Answer» 24 How will we know which compounds undergo E1 or E2 mechanism?

Discussion

3079.	ntcalc then nt1 number of phasesn nt2 number of componentsn nt3 degree of freedomen ntfor following reaction NH4ClNH3(g)+HCLn
Answer» ntcalc then nt1 number of phasesn nt2 number of componentsn nt3 degree of freedomen ntfor following reaction NH4ClNH3(g)+HCLn

Discussion

3080.	Calculate the number of oxygen molecules required to combine with 7g of N2 to form N2O3 when 80% of N2 is converted to N2O3.
Answer» Calculate the number of oxygen molecules required to combine with 7g of $N_{2}$ to form $N_{2} O_{3}$ when $80 %$ of $N_{2}$ is converted to $N_{2} O_{3}$ .

Discussion

3081.	22. x ml of 1 M HCL and x ml of 1 M NaOH are mixed then temperature increases by y degree Celsius. If 2x ml of same acid and base is mixed then temperature increases by
Answer» 22. x ml of 1 M HCL and x ml of 1 M NaOH are mixed then temperature increases by y degree Celsius. If 2x ml of same acid and base is mixed then temperature increases by

Discussion

3082.	आशय स्पष्ट कीजिए -(क) अवश्य ही उनमें कोई ऐसी गुप्त शक्ति थी, जिससे जीवों में श्रेष्ठता का दावा करने वाला मनुष्य वंचित है।(ख) उस एक रोटी से उनकी भूख तो क्या शांत होती; पर दोनों के हृदय को मानो भोजन मिल गया।
Answer» आशय स्पष्ट कीजिए - (क) अवश्य ही उनमें कोई ऐसी गुप्त शक्ति थी, जिससे जीवों में श्रेष्ठता का दावा करने वाला मनुष्य वंचित है। (ख) उस एक रोटी से उनकी भूख तो क्या शांत होती; पर दोनों के हृदय को मानो भोजन मिल गया।

3082.

आशय स्पष्ट कीजिए -(क) अवश्य ही उनमें कोई ऐसी गुप्त शक्ति थी, जिससे जीवों में श्रेष्ठता का दावा करने वाला मनुष्य वंचित है।(ख) उस एक रोटी से उनकी भूख तो क्या शांत होती; पर दोनों के हृदय को मानो भोजन मिल गया।

Answer»

आशय स्पष्ट कीजिए -

(क) अवश्य ही उनमें कोई ऐसी गुप्त शक्ति थी, जिससे जीवों में श्रेष्ठता का दावा करने वाला मनुष्य वंचित है।

(ख) उस एक रोटी से उनकी भूख तो क्या शांत होती; पर दोनों के हृदय को मानो भोजन मिल गया।

Discussion

3083.	The no. of α-hydrogen atoms in (C2H5)CH(CH3)
Answer» The no. of α-hydrogen atoms in (C2H5)CH(CH3)

Discussion

3084.	Why is cyclooctatetraene non aromatic and becomes aromatic on dimerization??
Answer» Why is cyclooctatetraene non aromatic and becomes aromatic on dimerization??

Discussion

3085.	Which one of the following nitro-compounds does not react with nitrous acid ?
Answer» Which one of the following nitro-compounds does not react with nitrous acid ?

Discussion

3086.	If nacl is doped with 10^-3 mole percent of srcl2 .find the number of cation vacancy
Answer» If nacl is doped with 10^-3 mole percent of srcl2 .find the number of cation vacancy

Discussion

3087.	Which bond angle will result in maximum dipole moment for XY2?
Answer» Which bond angle will result in maximum dipole moment for $X Y_{2}$ ?

Discussion

3088.	Two bottles were half filled with water from Ganga ('P') and kaveri ('Q') and kept under identical airtight conditions for 5 days. The oxygen was determined to be 2% in bottle ('P') and 10% in bottle ('Q'). What could be the cause of this difference?
Answer» Two bottles were half filled with water from Ganga ('P') and kaveri ('Q') and kept under identical airtight conditions for 5 days. The oxygen was determined to be 2 $%$ in bottle ('P') and 10 $%$ in bottle ('Q'). What could be the cause of this difference?

Discussion

3089.	3 g of activated charcoal was added to 50 mL of the acetic acid solution (0.06N) in a flask after an hour, it filtered and the strength of the filtrate was found to be 0.042 N. The amount of acetic acid adsorbed (per gram of charcoal) is:
Answer» $3 g$ of activated charcoal was added to $50 m L$ of the acetic acid solution $(0.06 N)$ in a flask after an hour, it filtered and the strength of the filtrate was found to be $0.042 N$ . The amount of acetic acid adsorbed (per gram of charcoal) is:

Discussion

3090.	A boat having a length 3 m and breadth 2 m is floating on a lake. The boat sinks by 1 cm when a man gets on it. The mass of the man is:
Answer» A boat having a length 3 m and breadth 2 m is floating on a lake. The boat sinks by 1 cm when a man gets on it. The mass of the man is:

Discussion

3091.	dx2−y2 orbital is not involved in which of the following hybridization?
Answer» $d_{x^{2} - y^{2}}$ orbital is not involved in which of the following hybridization?

Discussion

3092.	The conductivity of 0.001 M Na2SO4 solution is 2.6×10–4 S cm–1 and increases to 7×10–4 S cm–1 , when the solution is saturated with CaSO4. The molar conductivity of Na+ and Ca2+ are 50 and 120 S cm2 mol–1, respectively. Neglect the conductivity of water, find the solubility product of CaSO4.
Answer» The conductivity of $0.001 M$ $N a_{2} S O_{4}$ solution is $2.6 \times 10^{- 4} {S cm}^{- 1}$ and increases to $7 \times 10^{- 4} {S cm}^{- 1}$ , when the solution is saturated with $C a S O_{4}$ . The molar conductivity of $N a^{+}$ and $C a^{2 +}$ are $50$ and $120 {S cm}^{2} {mol}^{- 1}$ , respectively. Neglect the conductivity of water, find the solubility product of $C a S O_{4}$ .

Discussion

3093.	Why is water called a universal solvent?
Answer» Why is water called a universal solvent?

Discussion

3094.	Rita goes to a market to buy food that is rich in carbohydrates. Which among the following should she choose?
Answer» Rita goes to a market to buy food that is rich in carbohydrates. Which among the following should she choose?

Discussion

3095.	find out total stereoisomers offollowing compound: 4-methyl-2,5 oxa-diene (1)8 (2)4 (3)6 (4)
Answer» find out total stereoisomers offollowing compound: 4-methyl-2,5 oxa-diene (1)8 (2)4 (3)6 (4)

Discussion

3096.	(i) Isa homopolymer or copolymer? Give reason(ii) Write the monomers of the following polymer (iii) What is the role of Sulphur in vulcanization of rubber?
Answer» (i) Is a homopolymer or copolymer? Give reason (ii) Write the monomers of the following polymer (iii) What is the role of Sulphur in vulcanization of rubber?

Discussion

3097.	Flowchart of Extraction of Metals
Answer» Flowchart of Extraction of Metals

Discussion

3098.	No. Of type of bond in cuso4.5h2o? Integer type
Answer» No. Of type of bond in cuso4.5h2o? Integer type

Discussion

3099.	Question 1 (e)Which separation techniques will you apply for the separation of the following? e. Butter from curd.
Answer» Question 1 (e) Which separation techniques will you apply for the separation of the following? e. Butter from curd.

Discussion

3100.	14.The molar mass of solute sodium hydroxide obtained from measurement of osmotic pressure of its aqueous solution at 27c is 25g/mol. Therefore it's ionization percentage in this solution A)75 B)60 C)80 D)70
Answer» 14.The molar mass of solute sodium hydroxide obtained from measurement of osmotic pressure of its aqueous solution at 27c is 25g/mol. Therefore it's ionization percentage in this solution A)75 B)60 C)80 D)70

Discussion

Explore topic-wise InterviewSolutions in .

The electrolytic decomposition of dilute sulphonic acid with platinum electrode in cathodic reaction is [MNR 1988; UPSEAT 1999, 2002]

The function f(x)=ex−1 is tto be solved using Newton-Raphson method. If the initial value of x0 is taken as 1.0, then the absolute error observed at 2nd iteration is0.06

2. What are bond angle a.K2Cr2.O7

What is titration? What is the n factor of COOH | COOH?

The number of α and β particles emitted in the conversion of 90Th232 to 82Pb208 are

A certain diatomic molecule AB has dipole moment 1.6 D and internuclear distance is 100 pm . The percentage of electronic charge existing on more electronegative atom is (a) 33% (b) 25% (c) 50% (d) 10%

An organic compound of molar mass greater than 100 contains only C, H and N. The percentage of C is 6 times that of H while the sum of percentages of C and H is 1.5 times that of N. What is the least molar mass of the compound?

In which of the following pairs , the first electron gain enthalpy is endothermic process for both ?1) N , O2) Be , N 3) F , Ne 4) P , Se

The number of antibonding electron pairs in O2-?

(d)1267.Cyclononatetraenyl cationCyclononatetraenide anionNumber of n-electrons in (A) and (B) respectively are(a) 8, 8(G) 10, 8(b) 8, 10(d) 10, 10168. Which of the following compound has highest dipole moment?169, Which of the following is not aromatic?(d)None of these

In a 50 mL solution of H2O2 an excess of KI and dilute H2SO4 were added. The I2 liberated required 20 mL of 0.1N Na2S2O3 for complete reaction.Calculate the strength of H2O2 in grams per litre.

The final product formed by the ozonolysis of compound RCH=CR2 is

What happens when ethylamine is made to react with excess formic acid and formaldehyde?

Formula of hollow cyclinder

The correct order of nucleophilicity among the following is :

A metal oxide contains 80% metal. What is the equivalent weight of the metal ?

Write the balanced chemical equation when glucose reacts with oxygen.

The correct order of acidic strength in the following compounds

"x" will be

20. Assertion and reason (A) All F-S-F angle in SF4 greater than 90 degree but less than 180 degree (R) the lone pair-bond pair repulsion is weaker than bond pair-bond pair repulsion

The most stable carbanion among the following is -

Ionisation enthalpy order F >Cl>Cl {}^- >F{}^{}{}

which group has greater -R effect, -COOH or -SO_3H ?

How to find order of magnitude of a substance?

For the following reaction, the major product 'Z' is :

What is the meaning of no slipping condition in rotation?

24 How will we know which compounds undergo E1 or E2 mechanism?

ntcalc then nt1 number of phasesn nt2 number of componentsn nt3 degree of freedomen ntfor following reaction NH4ClNH3(g)+HCLn

Calculate the number of oxygen molecules required to combine with 7g of N2 to form N2O3 when 80% of N2 is converted to N2O3.

22. x ml of 1 M HCL and x ml of 1 M NaOH are mixed then temperature increases by y degree Celsius. If 2x ml of same acid and base is mixed then temperature increases by

The no. of α-hydrogen atoms in (C2H5)CH(CH3)

Why is cyclooctatetraene non aromatic and becomes aromatic on dimerization??

Which one of the following nitro-compounds does not react with nitrous acid ?

If nacl is doped with 10^-3 mole percent of srcl2 .find the number of cation vacancy

Which bond angle will result in maximum dipole moment for XY2?

Two bottles were half filled with water from Ganga ('P') and kaveri ('Q') and kept under identical airtight conditions for 5 days. The oxygen was determined to be 2% in bottle ('P') and 10% in bottle ('Q'). What could be the cause of this difference?

3 g of activated charcoal was added to 50 mL of the acetic acid solution (0.06N) in a flask after an hour, it filtered and the strength of the filtrate was found to be 0.042 N. The amount of acetic acid adsorbed (per gram of charcoal) is:

A boat having a length 3 m and breadth 2 m is floating on a lake. The boat sinks by 1 cm when a man gets on it. The mass of the man is:

dx2−y2 orbital is not involved in which of the following hybridization?

Why is water called a universal solvent?

Rita goes to a market to buy food that is rich in carbohydrates. Which among the following should she choose?

find out total stereoisomers offollowing compound: 4-methyl-2,5 oxa-diene (1)8 (2)4 (3)6 (4)

(i) Isa homopolymer or copolymer? Give reason(ii) Write the monomers of the following polymer (iii) What is the role of Sulphur in vulcanization of rubber?

Flowchart of Extraction of Metals

No. Of type of bond in cuso4.5h2o? Integer type

Question 1 (e)Which separation techniques will you apply for the separation of the following? e. Butter from curd.

14.The molar mass of solute sodium hydroxide obtained from measurement of osmotic pressure of its aqueous solution at 27c is 25g/mol. Therefore it's ionization percentage in this solution A)75 B)60 C)80 D)70