46295 + Interview Questions in Chemistry Page 33 InterviewSolution

1601.	In the given reaction CH3−CH2−Br Na/dry ether−−−−−−−−→ Product; Product will be:
Answer» In the given reaction $C H_{3} - C H_{2} - B r$ $N a / d r y e t h e r - ------- \to$ Product; Product will be:

Discussion

1602.	What is hcp and ccp?
Answer» What is hcp and ccp?

Discussion

1603.	The coordination no. of a metal in a complex compound is
Answer» The coordination no. of a metal in a complex compound is

Discussion

1604.	The number of elements that do not have completely filled d subshell among elements in between Ni,Pd,Pt,Cu,Ag,Au,Zn,Cd,Hg
Answer» The number of elements that do not have completely filled d subshell among elements in between $N i, P d, P t, C u, A g, A u, Z n, C d, H g$

Discussion

1605.	For a chemical reaction A+B⇌C+D (ΔrH0=80kJmol−1) the entropy change ΔrS0 depends on the temperature T (in K) as ΔrS0=2T(JK−1mol−1).Minimum temperature at which it will become spontaneous is _____K (Integer)
Answer» For a chemical reaction $A + B ⇌ C + D$ $(Δ_{r} H^{0} = 80 k J m o l^{- 1})$ the entropy change $Δ_{r} S^{0}$ depends on the temperature $T$ (in K) as $Δ_{r} S^{0} = 2 T (J K^{- 1} m o l^{- 1})$ . Minimum temperature at which it will become spontaneous is _____K (Integer)

Discussion

1606.	The first emission line in the atomic spectrum of hydrogen in the Balmer series appears at:
Answer» The first emission line in the atomic spectrum of hydrogen in the Balmer series appears at:

Discussion

1607.	What is IUPAC name of CH3CHBR CHCLCOOH
Answer» What is IUPAC name of CH3CHBR CHCLCOOH

Discussion

1608.	Why does the Ionisation Enthalpies Increases along the period?
Answer» Why does the Ionisation Enthalpies Increases along the period?

Discussion

1609.	Bicyclo[2.2.2]octane Does this compound is real? Rule for bicyclo is x≥y>z But here it is x≥y≥z
Answer» Bicyclo[2.2.2]octane Does this compound is real? Rule for bicyclo is x≥y>z But here it is x≥y≥z

Discussion

1610.	Which is true regarding free radical polymerisation of Ethylene?
Answer» Which is true regarding free radical polymerisation of Ethylene?

Discussion

1611.	ionisation energy factor atomic radii is inversely proportional explain
Answer» ionisation energy factor atomic radii is inversely proportional explain

Discussion

1612.	Consider the chemical reaction, N2(g)+3H2(g)→2NH3(g) The rate of this reaction can be expressed in terms of time derivatives of concentration of N2(g),H2(g) or NH3(g). Identify the correct relationship amongst the rate expressions.
Answer» Consider the chemical reaction, $N_{2} (g) + 3 H_{2} (g) \to 2 N H_{3} (g)$ The rate of this reaction can be expressed in terms of time derivatives of concentration of $N_{2} (g), H_{2} (g) o r N H_{3} (g)$ . Identify the correct relationship amongst the rate expressions.

Discussion

1613.	Structure of glyceralaldehyde.
Answer» Structure of glyceralaldehyde.

Discussion

1614.	If nitrobenzene is reduced to aniline, n-factor of aniline is
Answer» If nitrobenzene is reduced to aniline, n-factor of aniline is

Discussion

1615.	[NiCl4]2−is paramagnetic while [Ni(CO)4] is diamagneticthough both are tetrahedral. Why?
Answer» [NiCl₄]²⁻ is paramagnetic while [Ni(CO)₄] is diamagnetic though both are tetrahedral. Why?

Discussion

1616.	{ Q }17/30 At }12^° C the osmotic pressure of a urea solution is }500}{mm . The solution is diluted and the temperature is raised to }27^° C,}{ when the osmotic pressure is found to be }100mm . Determine the }} extent of dilution.
Answer» { Q }17/30 At }12^° C the osmotic pressure of a urea solution is }500}{mm . The solution is diluted and the temperature is raised to }27^° C,}{ when the osmotic pressure is found to be }100mm . Determine the }} extent of dilution.

Discussion

1617.	oxidation number of Both Cl in Ca(OCl)Cl
Answer» oxidation number of Both Cl in Ca(OCl)Cl

Discussion

1618.	In ABCABC close packing what are the types of voids present?
Answer» In ABCABC close packing what are the types of voids present?

Discussion

1619.	Illustratehow copper metal can give different products on reaction with HNO3.
Answer» Illustrate how copper metal can give different products on reaction with HNO₃.

Discussion

1620.	what is T- ratios of aaliged angles
Answer» what is T- ratios of aaliged angles

Discussion

1621.	The slope of π versus C was made against insulin concentration c. in gmL−1 and temperature 27 ∘C. If C is in litre−1 and the slope of line obtained is 4.65×10−3 gmL, which of the following are not the molar mass (in g mol−1) of insulin?
Answer» The slope of $π$ versus $C$ was made against insulin concentration $c$ . in ${gmL}^{- 1}$ and temperature $27^{\circ} C$ . If $C$ is in ${litre}^{- 1}$ and the slope of line obtained is $4.65 \times 10^{- 3} \frac{g}{m L}$ , which of the following are not the molar mass $({in g mol}^{- 1})$ of insulin?

Discussion

1622.	Metals which can be extracted by smelting process is/are:
Answer» Metals which can be extracted by smelting process is/are:

Discussion

1623.	42.Is dielectric constant of water is 80. Then why only HCL is completely dissociate not acetic acid, acetic acid is dissociated only 5 %
Answer» 42.Is dielectric constant of water is 80. Then why only HCL is completely dissociate not acetic acid, acetic acid is dissociated only 5 %

Discussion

1624.	The experimental molecular weight of an electrolyte will always be less than its calculated value because the value of Van't Hoff factor "i” is
Answer» The experimental molecular weight of an electrolyte will always be less than its calculated value because the value of Van't Hoff factor "i” is

Discussion

1625.	33. Structural isomers possible for c4h8br2 are (1) 3 (2) 9 (3) 10 (4) 4
Answer» 33. Structural isomers possible for c4h8br2 are (1) 3 (2) 9 (3) 10 (4) 4

Discussion

1626.	The dissociation energy of H2 is 430.53 kJ mol−1.If H2 is dissociated by illumination with radiation of wavelength 253.7 nm, the fraction of the radiant energy which will be converted into kinetic energy is given by
Answer» The dissociation energy of $H_{2} i s 430.53 k J m o l^{- 1} . I f H_{2}$ is dissociated by illumination with radiation of wavelength $253.7 n m$ , the fraction of the radiant energy which will be converted into kinetic energy is given by

Discussion

1627.	A juice seller has 10 ml of mango juice and 36 ml of orange juice. He has poured juice separately in glasses of equal capacity and filled to the brim. Find the minimum no. of glasses used to fill all the juice.
Answer» A juice seller has 10 ml of mango juice and 36 ml of orange juice. He has poured juice separately in glasses of equal capacity and filled to the brim. Find the minimum no. of glasses used to fill all the juice.

Discussion

1628.	Consider the reaction,2NO(g)+2H2(g)=N2(g)+2H2O(g). By what factor would the reaction quotient change when the concentration of NO is doubled:
Answer» Consider the reaction, $2 N O (g) + 2 H_{2} (g) = N_{2} (g) + 2 H_{2} O (g)$ . By what factor would the reaction quotient change when the concentration of $N O$ is doubled:

Discussion

1629.	A solution containing 2.675 g of CoCl3.6NH3 (Molar mass = 267.5 g/mol) is passed through a cation exchanger. The chloride ions obtained in the solution is treated with an excess of AgNO3 to give 4.78 g of AgCl (Molar mass = 143.5 g/mol). The formula of the complex is:(Atomic mass of Ag = 108 u)
Answer» A solution containing 2.675 g of $C o C l_{3} .6 N H_{3}$ (Molar mass = 267.5 g/mol) is passed through a cation exchanger. The chloride ions obtained in the solution is treated with an excess of $A g N O_{3}$ to give 4.78 g of $A g C l$ (Molar mass = 143.5 g/mol). The formula of the complex is: (Atomic mass of Ag = 108 u)

Discussion

1630.	a compound has a molecular weight of 350.it contains 20% by mass of N2,then number of atoms of N2 in one molecule of the compound is
Answer» a compound has a molecular weight of 350.it contains 20% by mass of N2,then number of atoms of N2 in one molecule of the compound is

Discussion

1631.	38.What is the increasing order of strength of intermolecular forces of elastomer fibres thermoplastic and thermosetting polymer?
Answer» 38.What is the increasing order of strength of intermolecular forces of elastomer fibres thermoplastic and thermosetting polymer?

Discussion

1632.	Between NaOH And KOH,Which One Will Dissocaiate Faster In Aqueous Solution?Justify Using Periodic Properties.Find The Charge Density Of Each.
Answer» Between NaOH And KOH,Which One Will Dissocaiate Faster In Aqueous Solution?Justify Using Periodic Properties.Find The Charge Density Of Each.

Discussion

1633.	coordination no of simple cubic is 6. Explain??
Answer» coordination no of simple cubic is 6. Explain??

Discussion

1634.	(4) Reactants predominate over products1. If at 25^° C, Ka (HX) is 1 x 10-5, the hydrolysisconstant of NaX will be(1) 5 x 10-7(2) 1 x 10-9(3) 5 x 10-8(4) 4 x 10-5Which of the following will undergo hydrolysis in
Answer» (4) Reactants predominate over products1. If at 25^° C, Ka (HX) is 1 x 10-5, the hydrolysisconstant of NaX will be(1) 5 x 10-7(2) 1 x 10-9(3) 5 x 10-8(4) 4 x 10-5Which of the following will undergo hydrolysis in

Discussion

1635.	23 CONH2 __--------- reduction ---------> -CH2NH2 In above reaction hybridization state of carbon changes from ?
Answer» 23 CONH2 __--------- reduction ---------> -CH2NH2 In above reaction hybridization state of carbon changes from ?

Discussion

1636.	The most stable carbonium ion is:
Answer» The most stable carbonium ion is:

Discussion

1637.	The E-isomer among the following is:
Answer» The E-isomer among the following is:

Discussion

1638.	ntone of the rectangular components of a force of 40N is 20N. Find the angle it makes with this componrentn
Answer» ntone of the rectangular components of a force of 40N is 20N. Find the angle it makes with this componrentn

Discussion

1639.	Inspite of presence of triple bond, why in benzyne all the carbon atoms are sp2 hybridised?
Answer» Inspite of presence of triple bond, why in benzyne all the carbon atoms are sp2 hybridised?

Discussion

1640.	What is Fleming's Right Hand Thumb Rule?
Answer» What is Fleming's Right Hand Thumb Rule?

Discussion

1641.	The relative lowering of the vapour pressure of an aqueous solution containing a non-volatile solute is 0.0126. The molality of the solution is:
Answer» The relative lowering of the vapour pressure of an aqueous solution containing a non-volatile solute is $0.0126$ . The molality of the solution is:

Discussion

1642.	An electric kettle has two heating coil is connected to an AC source kettle boils in 10 minutes when another coil is used water boils in 40 minutes if both are connected in series what will be the time taken to boil the water
Answer» An electric kettle has two heating coil is connected to an AC source kettle boils in 10 minutes when another coil is used water boils in 40 minutes if both are connected in series what will be the time taken to boil the water

Discussion

1643.	how to calculate atomic number and mass number
Answer» how to calculate atomic number and mass number

Discussion

1644.	zero order reaction proceed with cons†an t rate with time but at the end of reaction rate of reaction will drop to zero.what does it mean.explain with graph
Answer» zero order reaction proceed with cons†an t rate with time but at the end of reaction rate of reaction will drop to zero.what does it mean.explain with graph

Discussion

1645.	17. Maximum decarboxylation occurs in - A)CH3COOH B)C6H5COOH C)C6H5CH2COOH D)CH3COCH2COOH
Answer» 17. Maximum decarboxylation occurs in - A)CH3COOH B)C6H5COOH C)C6H5CH2COOH D)CH3COCH2COOH

Discussion

1646.	How dipole moment explain the polarity of a molecule
Answer» How dipole moment explain the polarity of a molecule

Discussion

1647.	The root mean square speed of molecules of nitrogen gas is v at a certain temperature. When the temperature is doubled, the molecules dissociate into individual atoms. The new rms speed of the atom is:
Answer» The root mean square speed of molecules of nitrogen gas is $v$ at a certain temperature. When the temperature is doubled, the molecules dissociate into individual atoms. The new rms speed of the atom is:

Discussion

1648.	What is a cell made of
Answer» What is a cell made of

Discussion

1649.	1000 g aqueous solution of CaCO3 contains 10 g of calcium carbonate. Concentration of the solution is: (1) 10 ppm (2) 100 ppm (3) 1000 ppm (4) 10000 ppm
Answer» 1000 g aqueous solution of CaCO3 contains 10 g of calcium carbonate. Concentration of the solution is: (1) 10 ppm (2) 100 ppm (3) 1000 ppm (4) 10000 ppm

Discussion

1650.	Which of the following orbitals are not possible?
Answer» Which of the following orbitals are not possible?

Discussion

Explore topic-wise InterviewSolutions in .

In the given reaction CH3−CH2−Br Na/dry ether−−−−−−−−→ Product; Product will be:

What is hcp and ccp?

The coordination no. of a metal in a complex compound is

The number of elements that do not have completely filled d subshell among elements in between Ni,Pd,Pt,Cu,Ag,Au,Zn,Cd,Hg

For a chemical reaction A+B⇌C+D (ΔrH0=80kJmol−1) the entropy change ΔrS0 depends on the temperature T (in K) as ΔrS0=2T(JK−1mol−1).Minimum temperature at which it will become spontaneous is _____K (Integer)

The first emission line in the atomic spectrum of hydrogen in the Balmer series appears at:

What is IUPAC name of CH3CHBR CHCLCOOH

Why does the Ionisation Enthalpies Increases along the period?

Bicyclo[2.2.2]octane Does this compound is real? Rule for bicyclo is x≥y>z But here it is x≥y≥z

Which is true regarding free radical polymerisation of Ethylene?

ionisation energy factor atomic radii is inversely proportional explain

Consider the chemical reaction, N2(g)+3H2(g)→2NH3(g) The rate of this reaction can be expressed in terms of time derivatives of concentration of N2(g),H2(g) or NH3(g). Identify the correct relationship amongst the rate expressions.

Structure of glyceralaldehyde.

If nitrobenzene is reduced to aniline, n-factor of aniline is

[NiCl4]2−is paramagnetic while [Ni(CO)4] is diamagneticthough both are tetrahedral. Why?

{ Q }17/30 At }12^° C the osmotic pressure of a urea solution is }500}{mm . The solution is diluted and the temperature is raised to }27^° C,}{ when the osmotic pressure is found to be }100mm . Determine the }} extent of dilution.

oxidation number of Both Cl in Ca(OCl)Cl

In ABCABC close packing what are the types of voids present?

Illustratehow copper metal can give different products on reaction with HNO3.

what is T- ratios of aaliged angles

The slope of π versus C was made against insulin concentration c. in gmL−1 and temperature 27 ∘C. If C is in litre−1 and the slope of line obtained is 4.65×10−3 gmL, which of the following are not the molar mass (in g mol−1) of insulin?

Metals which can be extracted by smelting process is/are:

42.Is dielectric constant of water is 80. Then why only HCL is completely dissociate not acetic acid, acetic acid is dissociated only 5 %

The experimental molecular weight of an electrolyte will always be less than its calculated value because the value of Van't Hoff factor "i” is

33. Structural isomers possible for c4h8br2 are (1) 3 (2) 9 (3) 10 (4) 4

The dissociation energy of H2 is 430.53 kJ mol−1.If H2 is dissociated by illumination with radiation of wavelength 253.7 nm, the fraction of the radiant energy which will be converted into kinetic energy is given by

A juice seller has 10 ml of mango juice and 36 ml of orange juice. He has poured juice separately in glasses of equal capacity and filled to the brim. Find the minimum no. of glasses used to fill all the juice.

Consider the reaction,2NO(g)+2H2(g)=N2(g)+2H2O(g). By what factor would the reaction quotient change when the concentration of NO is doubled:

A solution containing 2.675 g of CoCl3.6NH3 (Molar mass = 267.5 g/mol) is passed through a cation exchanger. The chloride ions obtained in the solution is treated with an excess of AgNO3 to give 4.78 g of AgCl (Molar mass = 143.5 g/mol). The formula of the complex is:(Atomic mass of Ag = 108 u)

a compound has a molecular weight of 350.it contains 20% by mass of N2,then number of atoms of N2 in one molecule of the compound is

38.What is the increasing order of strength of intermolecular forces of elastomer fibres thermoplastic and thermosetting polymer?

Between NaOH And KOH,Which One Will Dissocaiate Faster In Aqueous Solution?Justify Using Periodic Properties.Find The Charge Density Of Each.

coordination no of simple cubic is 6. Explain??

(4) Reactants predominate over products1. If at 25^° C, Ka (HX) is 1 x 10-5, the hydrolysisconstant of NaX will be(1) 5 x 10-7(2) 1 x 10-9(3) 5 x 10-8(4) 4 x 10-5Which of the following will undergo hydrolysis in

23 CONH2 __--------- reduction ---------> -CH2NH2 In above reaction hybridization state of carbon changes from ?

The most stable carbonium ion is:

The E-isomer among the following is:

ntone of the rectangular components of a force of 40N is 20N. Find the angle it makes with this componrentn

Inspite of presence of triple bond, why in benzyne all the carbon atoms are sp2 hybridised?

What is Fleming's Right Hand Thumb Rule?

The relative lowering of the vapour pressure of an aqueous solution containing a non-volatile solute is 0.0126. The molality of the solution is:

An electric kettle has two heating coil is connected to an AC source kettle boils in 10 minutes when another coil is used water boils in 40 minutes if both are connected in series what will be the time taken to boil the water

how to calculate atomic number and mass number

zero order reaction proceed with cons†an t rate with time but at the end of reaction rate of reaction will drop to zero.what does it mean.explain with graph

17. Maximum decarboxylation occurs in - A)CH3COOH B)C6H5COOH C)C6H5CH2COOH D)CH3COCH2COOH

How dipole moment explain the polarity of a molecule

The root mean square speed of molecules of nitrogen gas is v at a certain temperature. When the temperature is doubled, the molecules dissociate into individual atoms. The new rms speed of the atom is:

What is a cell made of

1000 g aqueous solution of CaCO3 contains 10 g of calcium carbonate. Concentration of the solution is: (1) 10 ppm (2) 100 ppm (3) 1000 ppm (4) 10000 ppm

Which of the following orbitals are not possible?