46295 + Interview Questions in Chemistry Page 27 InterviewSolution

1301.	The IUPAC name of crotonaldehye is
Answer» The IUPAC name of crotonaldehye is

Discussion

1302.	What volume of 0.5 M HNO3 is required to completely dissolve 13.0 g of zinc? (Assume that HNO3 is converted into NO2 and molar mass of Zn is 65/g mole)
Answer» What volume of $0.5 M H N O_{3}$ is required to completely dissolve $13.0 g$ of zinc? (Assume that $H N O_{3}$ is converted into $N O_{2}$ and molar mass of $Z n$ is 65/g mole)

Discussion

1303.	There are more shells than 4 in an atom or not ?
Answer» There are more shells than 4 in an atom or not ?

Discussion

1304.	Determine the total number of atoms present in 7NH3.
Answer» Determine the total number of atoms present in $7 N H_{3}$ .

Discussion

1305.	For the given reaction , (A) and (B) are major products. then major product (C) is :
Answer» For the given reaction , (A) and (B) are major products. then major product (C) is :

Discussion

1306.	What are the products formed when diborane reacts with each of the following compounds?
Answer» What are the products formed when diborane reacts with each of the following compounds?

Discussion

1307.	The approximate of an ocean is 2700m.the compressibility of water is 4.54×10-11 pa^-1and density of water is 10'3 kg\m'3 .what fractional compression of water will be obtained at the bottom of the ocean?
Answer» The approximate of an ocean is 2700m.the compressibility of water is 4.54×10-11 pa^-1and density of water is 10'3 kg\m'3 .what fractional compression of water will be obtained at the bottom of the ocean?

Discussion

1308.	The van der Waals' parameters for gases W,X,Y and Z areGasa(litre2−atom/mol2)b(litre/mol)W4.00.027X8.00.030Y6.00.032Z12.00.027Which one of these gases has the highest critical temperature?
Answer» The van der Waals' parameters for gases W,X,Y and Z are $\begin{matrix} G a s & a (l i t r e^{2} - a t o m / m o l^{2}) & b (l i t r e / m o l) W & 4.0 & 0.027 X & 8.0 & 0.030 Y & 6.0 & 0.032 Z & 12.0 & 0.027 \end{matrix}$ Which one of these gases has the highest critical temperature?

1308.

The van der Waals' parameters for gases W,X,Y and Z areGasa(litre2−atom/mol2)b(litre/mol)W4.00.027X8.00.030Y6.00.032Z12.00.027Which one of these gases has the highest critical temperature?

Answer»

The van der Waals' parameters for gases W,X,Y and Z are

$\begin{matrix} G a s & a (l i t r e^{2} - a t o m / m o l^{2}) & b (l i t r e / m o l) W & 4.0 & 0.027 X & 8.0 & 0.030 Y & 6.0 & 0.032 Z & 12.0 & 0.027 \end{matrix}$

Which one of these gases has the highest critical temperature?

Discussion

1309.	The s†an drad heat of formation of no2 and n2o4 are 8 and 4 kcalmol respectively .The heat of dimeristion of no2 is
Answer» The s†an drad heat of formation of no2 and n2o4 are 8 and 4 kcalmol respectively .The heat of dimeristion of no2 is

Discussion

1310.	Presence of particulate matter in polluted air catalyses the oxidation of sulphur dioxide to:
Answer» Presence of particulate matter in polluted air catalyses the oxidation of sulphur dioxide to:

Discussion

1311.	Dihedral angle of least stable conformer of ethane is:
Answer» Dihedral angle of least stable conformer of ethane is:

Discussion

1312.	28. What is reaction intermediate?
Answer» 28. What is reaction intermediate?

Discussion

1313.	The number of moles of HI that react with glycerol under warm conditions to give propene are
Answer» The number of moles of HI that react with glycerol under warm conditions to give propene are

Discussion

1314.	In electrolysis of dilute H2SO4 using platinum electrodes [DPMT 1983; IIT 1983; Kurukshetra CET 2002; AFMC 2005]
Answer» In electrolysis of dilute H₂SO₄using platinum electrodes [DPMT 1983; IIT 1983; Kurukshetra CET 2002; AFMC 2005]

1314.

In electrolysis of dilute H2SO4 using platinum electrodes [DPMT 1983; IIT 1983; Kurukshetra CET 2002; AFMC 2005]

Answer»

In electrolysis of dilute H₂SO₄using platinum electrodes

[DPMT 1983; IIT 1983; Kurukshetra CET 2002; AFMC 2005]

Discussion

1315.	In the lecture INTERMEDIATE COMPOUNDS, in the order of overall stability, 3 degree carbocation and tertiary carbocation are placed separately. Differentiate 3 degree carbocation and tertiary carbocation.
Answer» In the lecture INTERMEDIATE COMPOUNDS, in the order of overall stability, 3 degree carbocation and tertiary carbocation are placed separately. Differentiate 3 degree carbocation and tertiary carbocation.

Discussion

1316.	The hydrogen electrode is dipped in a solution of The potential of the cell would be (the value of 2.303RT/F is 0.059 V)
Answer» The hydrogen electrode is dipped in a solution of The potential of the cell would be (the value of 2.303RT/F is 0.059 V)

Discussion

1317.	The compound E(g) is:
Answer» The compound $E (g)$ is:

Discussion

1318.	24. the number of waves made by a bohr electron in an Orbit of maximum quantum number 3 is
Answer» 24. the number of waves made by a bohr electron in an Orbit of maximum quantum number 3 is

Discussion

1319.	Ph−CHO+HCHOconc. KOH−−−−−−−→△(C)+(D)Product (C) & (D) are :
Answer» $P h - C H O + H C H O c o n c . K O H - ------ \to △ (C) + (D)$ Product (C) & (D) are :

Discussion

1320.	At temperature T, a compound AB2(g) dissociates according to the reaction 2AB2(g)⇌2AB(g)+B2(g) with degree of dissociation α (which is very small). The expression for KP in terms of α and the total pressure, PT is:
Answer» At temperature $T$ , a compound $A B_{2} (g)$ dissociates according to the reaction $2 A B_{2} (g) ⇌ 2 A B (g) + B_{2} (g)$ with degree of dissociation $α$ (which is very small). The expression for $K_{P}$ in terms of $α$ and the total pressure, $P_{T}$ is:

Discussion

1321.	18 g of steam is passed over 2 g of iron.H2O + Fe → H2 + Fe2O3. is the excessive reagent? [Fe = 56 g]
Answer» $18 g$ of steam is passed over $2 g$ of iron. $H_{2} O + F e \to H_{2} + F e_{2} O_{3}$ . is the excessive reagent? [Fe = 56 g]

Discussion

1322.	What is the oxidation number of Zn in the following molecule: ZnO2−2
Answer» What is the oxidation number of $Z n$ in the following molecule: $Z n O_{2}^{2 -}$

Discussion

1323.	The equilibrium concentration of [B]eq for the reversible reaction A⇌B can be evaluated by the expression:
Answer» The equilibrium concentration of $[B]_{e q}$ for the reversible reaction $A ⇌ B$ can be evaluated by the expression:

Discussion

1324.	nt ntt nttt nttttntttttToluene reacts with H2/Ni at 200 degree Celcius?ntttnttntnn
Answer» nt ntt nttt nttttntttttToluene reacts with H2/Ni at 200 degree Celcius?ntttnttntnn

Discussion

1325.	Arrange the following compounds in order of decreasing lattice energy :LiF,MgO,KBr
Answer» Arrange the following compounds in order of decreasing lattice energy :LiF,MgO,KBr

Discussion

1326.	Ph−C≡C−CH3Hg2+,H+−−−−−−→A 'A' is
Answer» $P h - C \equiv C - C H_{3} H g^{2 +}, H^{+} - ----- \to A$ 'A' is

Discussion

1327.	76.During electrolysis of fused NaCl which reaction occur at anode? a)Chloride ion are oxidized b) Chloride ions are reduced c) Sodium ions are oxidised d) Sodium ions are reduced
Answer» 76.During electrolysis of fused NaCl which reaction occur at anode? a)Chloride ion are oxidized b) Chloride ions are reduced c) Sodium ions are oxidised d) Sodium ions are reduced

Discussion

1328.	16. Molality of aq. NaOh solution is 2 and specific gravity of solution is 1.5 find molarity of solution,mole fraction of each componenT,%(w/w),%(w/v)
Answer» 16. Molality of aq. NaOh solution is 2 and specific gravity of solution is 1.5 find molarity of solution,mole fraction of each componenT,%(w/w),%(w/v)

Discussion

1329.	On the basis of data given below predict which of the following gases shows least adsorption on a definite amount of charcoal?Gas Critical temp./K CO2 304SO2 630CH4 190H2 33
Answer» On the basis of data given below predict which of the following gases shows least adsorption on a definite amount of charcoal? Gas Critical temp./K $C O_{2}$ 304 $S O_{2}$ 630 $C H_{4}$ 190 $H_{2}$ 33

Discussion

1330.	Difference between ionic solid and compound solids
Answer» Difference between ionic solid and compound solids

Discussion

1331.	Calculate molarity and morality of 40% of NaOH(w/w). The density of solution is 1.2 g/ml
Answer» Calculate molarity and morality of 40% of NaOH(w/w). The density of solution is 1.2 g/ml

Discussion

1332.	Compare (coc) bond angle in diphenyl ether and dimethyl ether
Answer» Compare (coc) bond angle in diphenyl ether and dimethyl ether

Discussion

1333.	13.BiF_5 exist but BiCl_5 doesn't exist why?
Answer» 13.BiF_5 exist but BiCl_5 doesn't exist why?

Discussion

1334.	9. The X-X bond length is 1 angstrom and C-C bond length is 1.54 angstrom. If electronegativities of 'X' and 'C' are 3 and 2 respectively, the C-X bond length is likely to be A)1.27 B)1.18 C)1.08 D)1.28
Answer» 9. The X-X bond length is 1 angstrom and C-C bond length is 1.54 angstrom. If electronegativities of 'X' and 'C' are 3 and 2 respectively, the C-X bond length is likely to be A)1.27 B)1.18 C)1.08 D)1.28

Discussion

1335.	Do we count the OH group while giving an IUPAC name to an Alcohol like Propanol??
Answer» Do we count the OH group while giving an IUPAC name to an Alcohol like Propanol??

Discussion

1336.	Hybridised state of Fe in [Fe(H2O)5NO]SO4 is:
Answer» Hybridised state of Fe in $[F e (H_{2} O)_{5} N O] S O_{4}$ is:

Discussion

1337.	Find the integration of tanx
Answer» Find the integration of tanx

Discussion

1338.	Mountaineer generally use nylon rope for climbing mountains can nylon rope be replaced by cable made up of steel of equal strength?
Answer» Mountaineer generally use nylon rope for climbing mountains can nylon rope be replaced by cable made up of steel of equal strength?

Discussion

1339.	Detail explanation about positive and negative value of electrode potential in electrochemical series?Detailed explanation of graphs when molar conductivities of strong and weak electrolytes are given
Answer» Detail explanation about positive and negative value of electrode potential in electrochemical series? Detailed explanation of graphs when molar conductivities of strong and weak electrolytes are given

Discussion

1340.	A 500 W power source emits UV light having a wavelength of 2000 ∘A. How many photons are emitted per minute by the source?
Answer» A $500 W$ power source emits UV light having a wavelength of $2000 \circ A$ . How many photons are emitted per minute by the source?

Discussion

1341.	Largest no of bond pair will be in 1) 30g C2H6. 2) 24g C2H2 3) 14g H2. 3) 44g CO2
Answer» Largest no of bond pair will be in 1) 30g C2H6. 2) 24g C2H2 3) 14g H2. 3) 44g CO2

Discussion

1342.	40. the correct order of third ionization energies of Na Mg Al is:
Answer» 40. the correct order of third ionization energies of Na Mg Al is:

Discussion

1343.	Maximum number of electrons that can be accommodated in the subshell with azimuthal quantum number l = 4, is
Answer» Maximum number of electrons that can be accommodated in the subshell with azimuthal quantum number l = 4, is

Discussion

1344.	The major product formed is:
Answer» The major product formed is:

Discussion

1345.	When electron is added, energy is absorbed by the pair
Answer» When electron is added, energy is absorbed by the pair

Discussion

1346.	20 A sample of protein was analysed for metal content and analysis revealed that it contained magnesium and titanium in equal masses,by mass.if these are the only metallic species present in the protein and contains 0.016% metal,the minimum possible molar mass of the protein is: [ Mg=24,Ti=48]
Answer» 20 A sample of protein was analysed for metal content and analysis revealed that it contained magnesium and titanium in equal masses,by mass.if these are the only metallic species present in the protein and contains 0.016% metal,the minimum possible molar mass of the protein is: [ Mg=24,Ti=48]

Discussion

1347.	How dinitrogen monoxide can be a part of nitrogen dioxide and nitrogen monoxide according to law of multiple propirtion ?
Answer» How dinitrogen monoxide can be a part of nitrogen dioxide and nitrogen monoxide according to law of multiple propirtion ?

Discussion

1348.	The electronic configuration of U3+ ion is:
Answer» The electronic configuration of U³⁺ ion is:

Discussion

1349.	Why work done in reversible is greater than work done in irreversible
Answer» Why work done in reversible is greater than work done in irreversible

Discussion

1350.	Consider a system containing one mole of a diatomic gas, contained in a piston. What is the temperature change of the gas, if q=100 J and W=−200 J?(Given Cv=52R, R=8.3 JK−1mol−1 )
Answer» Consider a system containing one mole of a diatomic gas, contained in a piston. What is the temperature change of the gas, if $q = 100 J$ and $W = - 200 J ?$ (Given $C_{v} = \frac{5}{2} R, R = 8.3 J K^{- 1} m o l^{- 1}$ )

Discussion

Explore topic-wise InterviewSolutions in .

The IUPAC name of crotonaldehye is

What volume of 0.5 M HNO3 is required to completely dissolve 13.0 g of zinc? (Assume that HNO3 is converted into NO2 and molar mass of Zn is 65/g mole)

There are more shells than 4 in an atom or not ?

Determine the total number of atoms present in 7NH3.

For the given reaction , (A) and (B) are major products. then major product (C) is :

What are the products formed when diborane reacts with each of the following compounds?

The approximate of an ocean is 2700m.the compressibility of water is 4.54×10-11 pa^-1and density of water is 10'3 kg\m'3 .what fractional compression of water will be obtained at the bottom of the ocean?

The van der Waals' parameters for gases W,X,Y and Z areGasa(litre2−atom/mol2)b(litre/mol)W4.00.027X8.00.030Y6.00.032Z12.00.027Which one of these gases has the highest critical temperature?

The s†an drad heat of formation of no2 and n2o4 are 8 and 4 kcalmol respectively .The heat of dimeristion of no2 is

Presence of particulate matter in polluted air catalyses the oxidation of sulphur dioxide to:

Dihedral angle of least stable conformer of ethane is:

28. What is reaction intermediate?

The number of moles of HI that react with glycerol under warm conditions to give propene are

In electrolysis of dilute H2SO4 using platinum electrodes [DPMT 1983; IIT 1983; Kurukshetra CET 2002; AFMC 2005]

In the lecture INTERMEDIATE COMPOUNDS, in the order of overall stability, 3 degree carbocation and tertiary carbocation are placed separately. Differentiate 3 degree carbocation and tertiary carbocation.

The hydrogen electrode is dipped in a solution of The potential of the cell would be (the value of 2.303RT/F is 0.059 V)

The compound E(g) is:

24. the number of waves made by a bohr electron in an Orbit of maximum quantum number 3 is

Ph−CHO+HCHOconc. KOH−−−−−−−→△(C)+(D)Product (C) & (D) are :

At temperature T, a compound AB2(g) dissociates according to the reaction 2AB2(g)⇌2AB(g)+B2(g) with degree of dissociation α (which is very small). The expression for KP in terms of α and the total pressure, PT is:

18 g of steam is passed over 2 g of iron.H2O + Fe → H2 + Fe2O3. is the excessive reagent? [Fe = 56 g]

What is the oxidation number of Zn in the following molecule: ZnO2−2

The equilibrium concentration of [B]eq for the reversible reaction A⇌B can be evaluated by the expression:

nt ntt nttt nttttntttttToluene reacts with H2/Ni at 200 degree Celcius?ntttnttntnn

Arrange the following compounds in order of decreasing lattice energy :LiF,MgO,KBr

Ph−C≡C−CH3Hg2+,H+−−−−−−→A 'A' is

76.During electrolysis of fused NaCl which reaction occur at anode? a)Chloride ion are oxidized b) Chloride ions are reduced c) Sodium ions are oxidised d) Sodium ions are reduced

16. Molality of aq. NaOh solution is 2 and specific gravity of solution is 1.5 find molarity of solution,mole fraction of each componenT,%(w/w),%(w/v)

On the basis of data given below predict which of the following gases shows least adsorption on a definite amount of charcoal?Gas Critical temp./K CO2 304SO2 630CH4 190H2 33

Difference between ionic solid and compound solids

Calculate molarity and morality of 40% of NaOH(w/w). The density of solution is 1.2 g/ml

Compare (coc) bond angle in diphenyl ether and dimethyl ether

13.BiF_5 exist but BiCl_5 doesn't exist why?

9. The X-X bond length is 1 angstrom and C-C bond length is 1.54 angstrom. If electronegativities of 'X' and 'C' are 3 and 2 respectively, the C-X bond length is likely to be A)1.27 B)1.18 C)1.08 D)1.28

Do we count the OH group while giving an IUPAC name to an Alcohol like Propanol??

Hybridised state of Fe in [Fe(H2O)5NO]SO4 is:

Find the integration of tanx

Mountaineer generally use nylon rope for climbing mountains can nylon rope be replaced by cable made up of steel of equal strength?

Detail explanation about positive and negative value of electrode potential in electrochemical series?Detailed explanation of graphs when molar conductivities of strong and weak electrolytes are given

A 500 W power source emits UV light having a wavelength of 2000 ∘A. How many photons are emitted per minute by the source?

Largest no of bond pair will be in 1) 30g C2H6. 2) 24g C2H2 3) 14g H2. 3) 44g CO2

40. the correct order of third ionization energies of Na Mg Al is:

Maximum number of electrons that can be accommodated in the subshell with azimuthal quantum number l = 4, is

The major product formed is:

When electron is added, energy is absorbed by the pair

20 A sample of protein was analysed for metal content and analysis revealed that it contained magnesium and titanium in equal masses,by mass.if these are the only metallic species present in the protein and contains 0.016% metal,the minimum possible molar mass of the protein is: [ Mg=24,Ti=48]

How dinitrogen monoxide can be a part of nitrogen dioxide and nitrogen monoxide according to law of multiple propirtion ?

The electronic configuration of U3+ ion is:

Why work done in reversible is greater than work done in irreversible

Consider a system containing one mole of a diatomic gas, contained in a piston. What is the temperature change of the gas, if q=100 J and W=−200 J?(Given Cv=52R, R=8.3 JK−1mol−1 )