2600 + Interview Questions in Chemistry Page 29 InterviewSolution

1401.	Which of the following is not an actinoid?
Answer» Which of the following is not an actinoid?

Discussion

1402.	Which of the following is/are carbocation(s)?
Answer» Which of the following is/are carbocation(s)?

Discussion

1403.	When a sulphur atom becomes a sulphide ion
Answer» When a sulphur atom becomes a sulphide ion

Discussion

1404.	Hydrazine is not
Answer» Hydrazine is not

Discussion

1405.	Which of the following is the correct order for the stability of the following resonating structures?
Answer» Which of the following is the correct order for the stability of the following resonating structures?

Discussion

1406.	The degree of unsaturation or index of hydrogen deficiency in the following is:i) C6H14 ii) C4H6iii) C6H6
Answer» The degree of unsaturation or index of hydrogen deficiency in the following is: i) $C_{6} H_{14}$ ii) $C_{4} H_{6}$ iii) $C_{6} H_{6}$

1406.

The degree of unsaturation or index of hydrogen deficiency in the following is:i) C6H14 ii) C4H6iii) C6H6

Answer»

The degree of unsaturation or index of hydrogen deficiency in the following is:

i) $C_{6} H_{14}$

ii) $C_{4} H_{6}$

iii) $C_{6} H_{6}$

Discussion

1407.	The number of water molecules present in a drop of water (Volume 0.0018 ml) at room temperature is
Answer» The number of water molecules present in a drop of water (Volume $0.0018 m l$ ) at room temperature is

Discussion

1408.	Which defectcauses decrease in the density of crystal[KCET 2000,05]
Answer» Which defect causes decrease in the density of crystal [KCET 2000, 05]

1408.

Which defectcauses decrease in the density of crystal[KCET 2000,05]

Answer»

Which defect
causes decrease in the density of crystal

[KCET 2000,
05]

Discussion

1409.	How many grams of methane are required to produce 22 g CO2 by combustion?CH4+2O2→CO2+2H2O
Answer» How many grams of methane are required to produce $22 g C O_{2}$ by combustion? $C H_{4} + 2 O_{2} \to C O_{2} + 2 H_{2} O$

Discussion

1410.	Water gas is produced by
Answer» Water gas is produced by

Discussion

1411.	Consider thiol anion RS- and alkoxy anion RO- .Which of the following statements is correct?
Answer» Consider thiol anion RS^- and alkoxy anion RO^- .Which of the following statements is correct?

Discussion

1412.	Gas deviates from ideal gas nature because molecules
Answer» Gas deviates from ideal gas nature because molecules

1412.

Gas deviates from ideal gas nature because molecules

Answer»

Gas deviates from ideal gas nature because molecules

Discussion

1413.	The product of the reaction given below is:
Answer» The product of the reaction given below is:

Discussion

1414.	Choose the correct pair according to their functional isomer.
Answer» Choose the correct pair according to their functional isomer.

Discussion

1415.	20 litres of a monoatomic ideal gas at 0oC and 10 atm pressure is suddenly released to 1 atm pressure and the gas expands adiabatically against this constant pressure. The volume of the gas respectively are
Answer» 20 litres of a monoatomic ideal gas at $0^{o} C$ and 10 atm pressure is suddenly released to 1 atm pressure and the gas expands adiabatically against this constant pressure. The volume of the gas respectively are

Discussion

1416.	Which of the following can't be used in Friedal Craft's reactions?
Answer» Which of the following can't be used in Friedal Craft's reactions?

Discussion

1417.	At 300K, when a solute is added to a solvent its vapour pressure over mercury reduces from 50 mm to 45 mm. The value of mole fraction of solute will be:
Answer» At 300K, when a solute is added to a solvent its vapour pressure over mercury reduces from 50 mm to 45 mm. The value of mole fraction of solute will be:

Discussion

1418.	The root mean square velocity of an ideal gas in a closed container of fixed volume is increased from 5×104 cm s−1 to 10×104 cm s−1 Which of the following statement correctly explains how the change is accomplished
Answer» The root mean square velocity of an ideal gas in a closed container of fixed volume is increased from $5 \times 10^{4} c m s^{- 1}$ to $10 \times 10^{4} c m s^{- 1}$ Which of the following statement correctly explains how the change is accomplished

1418.

The root mean square velocity of an ideal gas in a closed container of fixed volume is increased from 5×104 cm s−1 to 10×104 cm s−1 Which of the following statement correctly explains how the change is accomplished

Answer»

The root mean square velocity of an ideal gas in a closed container of fixed volume is increased from $5 \times 10^{4} c m s^{- 1}$ to $10 \times 10^{4} c m s^{- 1}$ Which of the following statement correctly explains how the change is accomplished

Discussion

1419.	When D-fructose is reduced with NaBH4/H3O+, alditols are produced. Which of the following compounds will give the same alditol on reduction with NaBH4/H3O+?
Answer» When D-fructose is reduced with $N a B H_{4} / H_{3} O^{+}$ , alditols are produced. Which of the following compounds will give the same alditol on reduction with $N a B H_{4} / H_{3} O^{+}$ ?

Discussion

1420.	At 50oC, the self-ionisation constant (ionic product) of NH3 is given as,KNH3=[NH+4][NH−2]=10−30M2.How many NH−2 ions are present per mm3 of pure liquid ammonia?
Answer» At $50^{o} C,$ the self-ionisation constant (ionic product) of $N H_{3}$ is given as, $K_{N H_{3}} = [N H_{4}^{+}] [N H_{2}^{-}] = 10^{- 30} M^{2}$ . How many $N H_{2}^{-}$ ions are present per $m m^{3}$ of pure liquid ammonia?

Discussion

1421.	Carbanion formation in the presence of a strong base is the easiest in -
Answer» Carbanion formation in the presence of a strong base is the easiest in -

Discussion

1422.	Which of the following is the correct order in terms of covalent radius?
Answer» Which of the following is the correct order in terms of covalent radius?

Discussion

1423.	What is the paste of clay and paper called?
Answer» What is the paste of clay and paper called?

1423.

What is the paste of clay and paper called?

Answer»

What is the paste of clay and paper called?

Discussion

1424.	Match list-I with list-II and select the correct answer using the codes given below - List-I List-II Ion Radius (in pm) (I) Li+ (a) 216 (II) Na+ (b) 195 (III) Br− (c) 60 (IV) I− (d) 95
Answer» Match list-I with list-II and select the correct answer using the codes given below - List-I List-II Ion Radius (in pm) (I) $L i^{+}$ (a) 216 (II) $N a^{+}$ (b) 195 (III) $B r^{-}$ (c) 60 (IV) $I^{-}$ (d) 95

1424.

Match list-I with list-II and select the correct answer using the codes given below - List-I List-II Ion Radius (in pm) (I) Li+ (a) 216 (II) Na+ (b) 195 (III) Br− (c) 60 (IV) I− (d) 95

Answer»

Match list-I with list-II and select the correct answer using the codes given below -

List-I List-II

Ion Radius (in pm)

(I) $L i^{+}$ (a) 216

(II) $N a^{+}$ (b) 195

(III) $B r^{-}$ (c) 60

(IV) $I^{-}$ (d) 95

Discussion

1425.	Find the wavelength of radiation required to excite an electron in the ground level of Li2+ (Z = 3) to the third energy level.
Answer» Find the wavelength of radiation required to excite an electron in the ground level of $L i^{2 +}$ (Z = 3) to the third energy level.

Discussion

1426.	The correct order of rates of solvolysis of the following compounds is:
Answer» The correct order of rates of solvolysis of the following compounds is:

Discussion

1427.	Which of the following will show maximum power of +I effect?
Answer» Which of the following will show maximum power of +I effect?

Discussion

1428.	An organic compound C3H6O does not give a precipitate with 2,4‑Dinitrophenyl hydrazine reagent and does not react with metallic sodium. It could be:
Answer» An organic compound C3H6O does not give a precipitate with 2,4‑Dinitrophenyl hydrazine reagent and does not react with metallic sodium. It could be:

Discussion

1429.	Which of the following are the hallmarks of Green chemistry?
Answer» Which of the following are the hallmarks of Green chemistry?

Discussion

1430.	Which of the following is TRUE for NaCl type structure?
Answer» Which of the following is TRUE for NaCl type structure?

Discussion

1431.	Glucose and galactose differ in the position of - H and - OH group on which carbon atom
Answer» Glucose and galactose differ in the position of - H and - OH group on which carbon atom

Discussion

1432.	The major product of the reaction is:
Answer» The major product of the reaction is:

Discussion

1433.	Which of the following has high melting point?
Answer» Which of the following has high melting point?

Discussion

1434.	If 15 g of a molecule contains 3.011×1021 molecules what will be the molar mass of the molecule?
Answer» If $15 g$ of a molecule contains $3.011 \times 10^{21}$ molecules what will be the molar mass of the molecule?

Discussion

1435.	The most suitable reagent for the following conversion is:
Answer» The most suitable reagent for the following conversion is:

Discussion

1436.	Which of the following pairs has almost same colour?
Answer» Which of the following pairs has almost same colour?

Discussion

1437.	The correct formula of Zeise’s salt is
Answer» The correct formula of Zeise’s salt is

Discussion

1438.	If the boiling point elevation constant and the boiling point of benzene are 2.16 K kg mol−1 and 81.0∘ C respectively, calculate the boiling point of a solution formed when 5 g of C14H12 is dissolved in 15 g of benzene.
Answer» If the boiling point elevation constant and the boiling point of benzene are $2.16 {K kg mol}^{- 1}$ and ${81.0}^{\circ} C$ respectively, calculate the boiling point of a solution formed when $5 g$ of $C_{14} H_{12}$ is dissolved in $15 g$ of benzene.

Discussion

1439.	End product of the reaction would be:
Answer» End product of the reaction would be:

Discussion

1440.	Compare the relative stabilities of the given compounds:
Answer» Compare the relative stabilities of the given compounds:

Discussion

1441.	Ionic radius of:
Answer» Ionic radius of:

Discussion

1442.	In which of the following molecules are all the bonds not equal?
Answer» In which of the following molecules are all the bonds not equal?

Discussion

1443.	Which will make basic buffer ?
Answer» Which will make basic buffer ?

Discussion

1444.	Select the species which is NOT aromatic:
Answer» Select the species which is NOT aromatic:

Discussion

1445.	Write wedge dash representation for the following compound.CH3ClAssume one Hydrogen is below the plane and chlorine is above the plane.
Answer» Write wedge dash representation for the following compound. $C H_{3} C l$ Assume one Hydrogen is below the plane and chlorine is above the plane.

Discussion

1446.	Which of the following alkenes will react faster with H2 under catalytic hydrogenation conditions?
Answer» Which of the following alkenes will react faster with $H_{2}$ under catalytic hydrogenation conditions?

Discussion

1447.	Which of the following is the correct order of the atomic size of C, N, P and S?
Answer» Which of the following is the correct order of the atomic size of C, N, P and S?

Discussion

1448.	The sodium salt of a certain weak monobasic organic acid is hydrolysed to an extent of 3% in its 0.1 M solution at 25∘ C. Given that the ionic product of water is 10−14 at this temperature, what is the dissociation constant of the acid ?
Answer» The sodium salt of a certain weak monobasic organic acid is hydrolysed to an extent of $3 %$ in its $0.1 M$ solution at $25^{\circ} C$ . Given that the ionic product of water is $10^{- 14}$ at this temperature, what is the dissociation constant of the acid ?

Discussion

1449.	Which of the following order is correct about repulsions?
Answer» Which of the following order is correct about repulsions?

Discussion

1450.	Among the following, the poorest electrolytic conductor would be
Answer» Among the following, the poorest electrolytic conductor would be

Discussion

Explore topic-wise InterviewSolutions in .

Which of the following is not an actinoid?

Which of the following is/are carbocation(s)?

When a sulphur atom becomes a sulphide ion

Hydrazine is not

Which of the following is the correct order for the stability of the following resonating structures?

The degree of unsaturation or index of hydrogen deficiency in the following is:i) C6H14 ii) C4H6iii) C6H6

The number of water molecules present in a drop of water (Volume 0.0018 ml) at room temperature is

Which defectcauses decrease in the density of crystal[KCET 2000,05]

How many grams of methane are required to produce 22 g CO2 by combustion?CH4+2O2→CO2+2H2O

Water gas is produced by

Consider thiol anion RS- and alkoxy anion RO- .Which of the following statements is correct?

Gas deviates from ideal gas nature because molecules

The product of the reaction given below is:

Choose the correct pair according to their functional isomer.

20 litres of a monoatomic ideal gas at 0oC and 10 atm pressure is suddenly released to 1 atm pressure and the gas expands adiabatically against this constant pressure. The volume of the gas respectively are

Which of the following can't be used in Friedal Craft's reactions?

At 300K, when a solute is added to a solvent its vapour pressure over mercury reduces from 50 mm to 45 mm. The value of mole fraction of solute will be:

The root mean square velocity of an ideal gas in a closed container of fixed volume is increased from 5×104 cm s−1 to 10×104 cm s−1 Which of the following statement correctly explains how the change is accomplished

When D-fructose is reduced with NaBH4/H3O+, alditols are produced. Which of the following compounds will give the same alditol on reduction with NaBH4/H3O+?

At 50oC, the self-ionisation constant (ionic product) of NH3 is given as,KNH3=[NH+4][NH−2]=10−30M2.How many NH−2 ions are present per mm3 of pure liquid ammonia?

Carbanion formation in the presence of a strong base is the easiest in -

Which of the following is the correct order in terms of covalent radius?

What is the paste of clay and paper called?

Match list-I with list-II and select the correct answer using the codes given below - List-I List-II Ion Radius (in pm) (I) Li+ (a) 216 (II) Na+ (b) 195 (III) Br− (c) 60 (IV) I− (d) 95

Find the wavelength of radiation required to excite an electron in the ground level of Li2+ (Z = 3) to the third energy level.

The correct order of rates of solvolysis of the following compounds is:

Which of the following will show maximum power of +I effect?

An organic compound C3H6O does not give a precipitate with 2,4‑Dinitrophenyl hydrazine reagent and does not react with metallic sodium. It could be:

Which of the following are the hallmarks of Green chemistry?

Which of the following is TRUE for NaCl type structure?

Glucose and galactose differ in the position of - H and - OH group on which carbon atom

The major product of the reaction is:

Which of the following has high melting point?

If 15 g of a molecule contains 3.011×1021 molecules what will be the molar mass of the molecule?

The most suitable reagent for the following conversion is:

Which of the following pairs has almost same colour?

The correct formula of Zeise’s salt is

If the boiling point elevation constant and the boiling point of benzene are 2.16 K kg mol−1 and 81.0∘ C respectively, calculate the boiling point of a solution formed when 5 g of C14H12 is dissolved in 15 g of benzene.

End product of the reaction would be:

Compare the relative stabilities of the given compounds:

Ionic radius of:

In which of the following molecules are all the bonds not equal?

Which will make basic buffer ?

Select the species which is NOT aromatic:

Write wedge dash representation for the following compound.CH3ClAssume one Hydrogen is below the plane and chlorine is above the plane.

Which of the following alkenes will react faster with H2 under catalytic hydrogenation conditions?

Which of the following is the correct order of the atomic size of C, N, P and S?

The sodium salt of a certain weak monobasic organic acid is hydrolysed to an extent of 3% in its 0.1 M solution at 25∘ C. Given that the ionic product of water is 10−14 at this temperature, what is the dissociation constant of the acid ?

Which of the following order is correct about repulsions?

Among the following, the poorest electrolytic conductor would be