10223 + Interview Questions in Chemistry Page 153 InterviewSolution

7601.	The potato chips manufacturers uses___gas to flush the chips bags to prevent the chips from getting oxidized.
Answer» The potato chips manufacturers uses___gas to flush the chips bags to prevent the chips from getting oxidized.

Discussion

7602.	What is the empirical formula of a compound which contains 2.63 moles of N and 3.947 moles of O?
Answer» What is the empirical formula of a compound which contains 2.63 moles of N and 3.947 moles of O?

Discussion

7603.	On rubbing the ebonite rod with fur :
Answer» On rubbing the ebonite rod with fur :

Discussion

7604.	Select conductor of heat from the following.
Answer» Select conductor of heat from the following.

7604.

Select conductor of heat from the following.

Answer»

Select conductor of heat from the following.

Discussion

7605.	Match Column I with Column II with reference to Haber's process: Column IColumn IIA.Catalystp.BoschProcessB.Promotorq.QuicklimeC.DryingofAmmoniar.AluminiumOxideD.UseOfHydrogengass.Finelydividediron
Answer» Match Column I with Column II with reference to Haber's process: $\begin{matrix} C o l u m n I & C o l u m n I I A . & C a t a l y s t & p . & B o s c h P r o c e s s B . & P r o m o t o r & q . & Q u i c k l i m e C . & D r y i n g o f A m m o n i a & r . & A l u m i n i u m O x i d e D . & U s e O f H y d r o g e n g a s & s . & F i n e l y d i v i d e d i r o n \end{matrix}$

7605.

Match Column I with Column II with reference to Haber's process: Column IColumn IIA.Catalystp.BoschProcessB.Promotorq.QuicklimeC.DryingofAmmoniar.AluminiumOxideD.UseOfHydrogengass.Finelydividediron

Answer»

Match Column I with Column II with reference to Haber's process:

$\begin{matrix} C o l u m n I & C o l u m n I I A . & C a t a l y s t & p . & B o s c h P r o c e s s B . & P r o m o t o r & q . & Q u i c k l i m e C . & D r y i n g o f A m m o n i a & r . & A l u m i n i u m O x i d e D . & U s e O f H y d r o g e n g a s & s . & F i n e l y d i v i d e d i r o n \end{matrix}$

Discussion

7606.	Protons and neutrons are together called as__.
Answer» Protons and neutrons are together called as__.

Discussion

7607.	A solution contains sugar dissolved in 150 g of water. If mass of the solution is 200 g, calculate the concentration in terms of mass by mass percentage of the solution.
Answer» A solution contains sugar dissolved in $150 g$ of water. If mass of the solution is $200 g$ , calculate the concentration in terms of mass by mass percentage of the solution.

Discussion

7608.	The positive charge on the nucleus is due to:
Answer» The positive charge on the nucleus is due to:

Discussion

7609.	Question 40 What were the drawbacks of Rutherford's model of an atom?
Answer» Question 40 What were the drawbacks of Rutherford's model of an atom?

Discussion

7610.	The Tyndall effect is not observed in :
Answer» The Tyndall effect is not observed in :

Discussion

7611.	What is the dispersed phase?
Answer» What is the dispersed phase?

Discussion

7612.	Convert the following temperature to the Celsius scale. [2 MARKS]. (a) 293 K (b) 470 K
Answer» Convert the following temperature to the Celsius scale. [2 MARKS]. (a) 293 K (b) 470 K

7612.

Convert the following temperature to the Celsius scale. [2 MARKS]. (a) 293 K (b) 470 K

Answer»

Convert the following temperature to the Celsius scale. [2 MARKS].

(a) 293 K (b) 470 K

Discussion

7613.	Write the electron-dot structure for sodium, oxygen and magnesium.
Answer» Write the electron-dot structure for sodium, oxygen and magnesium.

Discussion

7614.	If the current is passed into the solution of an electrolyte [AIIMS 1979]
Answer» If the current is passed into the solution of an electrolyte [AIIMS 1979]

7614.

If the current is passed into the solution of an electrolyte [AIIMS 1979]

Answer»

If the current is passed into the solution of an electrolyte

[AIIMS 1979]

Discussion

7615.	Which of the following is the correct formula of calcium bicarbonate?
Answer» Which of the following is the correct formula of calcium bicarbonate?

Discussion

7616.	Give the usual name for the following: Heat required to change the state of a substance without changing the temperature.
Answer» Give the usual name for the following: Heat required to change the state of a substance without changing the temperature.

7616.

Give the usual name for the following: Heat required to change the state of a substance without changing the temperature.

Answer»

Give the usual name for the following:

Heat required to change the state of a substance without changing the temperature.

Discussion

7617.	Which of the following statements are correct for a solution of H2O2 having a strength of 17g/litre ?
Answer» Which of the following statements are correct for a solution of $H_{2} O_{2}$ having a strength of 17g/litre ?

Discussion

7618.	According to Dalton, different types of matter exists due to the different types of ___ constituting them.
Answer» According to Dalton, different types of matter exists due to the different types of ___ constituting them.

Discussion

7619.	The repeating unit present in Nylon-6 is
Answer» The repeating unit present in Nylon-6 is

Discussion

7620.	What is the chemical name of the following compound?
Answer» What is the chemical name of the following compound?

7620.

What is the chemical name of the following compound?

Answer»

What is the chemical name of the following compound?

Discussion

7621.	The increase in equivalent conductance of an electrolyte solution with dilution is due to the increase in [MP PMT 1996]
Answer» The increase in equivalent conductance of an electrolyte solution with dilution is due to the increase in [MP PMT 1996]

7621.

The increase in equivalent conductance of an electrolyte solution with dilution is due to the increase in [MP PMT 1996]

Answer»

The increase in equivalent conductance of an electrolyte solution with

dilution is due to the increase in

[MP PMT 1996]

Discussion

7622.	IUPAC name of tertiary butyl alcohol is-
Answer» IUPAC name of tertiary butyl alcohol is-

Discussion

7623.	Explain with examples that rate of diffusion decreases with increase in density of solutes
Answer» Explain with examples that rate of diffusion decreases with increase in density of solutes

Discussion

7624.	If a set has 8 subsets, then it contains ___ elements
Answer» If a set has 8 subsets, then it contains ___ elements

Discussion

7625.	When metal oxides or metal hydroxides react with ___, they form salt and water.
Answer» When metal oxides or metal hydroxides react with ___, they form salt and water.

Discussion

7626.	Which of the following shows Brownian motion?
Answer» Which of the following shows Brownian motion?

Discussion

7627.	Why does an atom needs to be stable?
Answer» Why does an atom needs to be stable?

Discussion

7628.	In the given periodic table the coloured boxes represents elements and are grouped as _______________
Answer» In the given periodic table the coloured boxes represents elements and are grouped as _______________

7628.

In the given periodic table the coloured boxes represents elements and are grouped as _______________

Answer»

In the given periodic table the coloured boxes represents elements and are grouped as _______________

Discussion

7629.	The quantity of a solid that can be dissolved in a solvent, at a given temperature, is known as __________.
Answer» The quantity of a solid that can be dissolved in a solvent, at a given temperature, is known as __________.

Discussion

7630.	A Recent discovery on mars shows water presence on its surface. What will be the composition of one water molecule on the mars?
Answer» A Recent discovery on mars shows water presence on its surface. What will be the composition of one water molecule on the mars?

Discussion

7631.	Reaction of granulated zinc with dil HCl results in formation of:
Answer» Reaction of granulated zinc with dil HCl results in formation of:

Discussion

7632.	An element having configuration 1s22s22p63s23p64s1 will form:
Answer» An element having configuration 1s²2s²2p⁶3s²3p⁶4s¹ will form:

Discussion

7633.	If solution X has a pH of 6, then X is:
Answer» If solution X has a pH of 6, then X is:

Discussion

7634.	Question 4 (a) Lithium, sodium, potassium are all metals that react with water to liberate hydrogen gas. Is there any similarity in the atoms of these elements?
Answer» Question 4 (a) Lithium, sodium, potassium are all metals that react with water to liberate hydrogen gas. Is there any similarity in the atoms of these elements?

Discussion

7635.	If work W is done in blowing a bubble of radius R from a soap solution, then the work done in blowing a bubble of radius 2R from the same solution is
Answer» If work W is done in blowing a bubble of radius R from a soap solution, then the work done in blowing a bubble of radius 2R from the same solution is

7635.

If work W is done in blowing a bubble of radius R from a soap solution, then the work done in blowing a bubble of radius 2R from the same solution is

Answer»

If work W is done in blowing a bubble of radius R from a soap solution, then the work done in blowing a bubble of radius 2R from the same solution is

Discussion

7636.	Question 5 Compare all the proposed models of an atom given in this chapter.
Answer» Question 5 Compare all the proposed models of an atom given in this chapter.

Discussion

7637.	Evaporation is the physical process of converting _______________.
Answer» Evaporation is the physical process of converting _______________.

Discussion

7638.	What is meant by saying that metals are sonorous ?
Answer» What is meant by saying that metals are sonorous ?

Discussion

7639.	Which of the following forms the bottom layer in the filtration tank in the purification and supply of drinking water in a city?
Answer» Which of the following forms the bottom layer in the filtration tank in the purification and supply of drinking water in a city?

Discussion

7640.	Question 1 (c) Which separation techniques will you apply for the separation of the following? c. Small pieces of metal in the engine oil of a car.
Answer» Question 1 (c) Which separation techniques will you apply for the separation of the following? c. Small pieces of metal in the engine oil of a car.

Discussion

7641.	Why does a gun recoil when a bullet is fired ? Explain recoil? [3 MARKS]
Answer» Why does a gun recoil when a bullet is fired ? Explain recoil? [3 MARKS]

Discussion

7642.	Calculate Molarity of a solution having 50 milli moles dissolved in 10 mL of solution.
Answer» Calculate Molarity of a solution having 50 milli moles dissolved in 10 mL of solution.

Discussion

7643.	The oxidation number of manganese in MnO−4 is7
Answer» The oxidation number of manganese in $M n O_{4}^{-}$ is 7

Discussion

7644.	What happens when HCl is treated with an aqueous solution of AgNO3?
Answer» What happens when HCl is treated with an aqueous solution of $A g N O_{3}$ ?

Discussion

7645.	How many atoms are present in the following? [5 MARKS] 1. H2O2 2. H3PO4 3. CO2−3 4. C12H22O11 5. H2SO4
Answer» How many atoms are present in the following? [5 MARKS] 1. $H_{2} O_{2}$ 2. $H_{3} P O_{4}$ 3. $C O_{3}^{2 -}$ 4. $C_{12} H_{22} O_{11}$ 5. $H_{2} S O_{4}$

Discussion

7646.	Question 10 (c) Classify the following into elements, compounds and mixtures. c. Sugar solution
Answer» Question 10 (c) Classify the following into elements, compounds and mixtures. c. Sugar solution

Discussion

7647.	Which of the following species has the largest radius?
Answer» Which of the following species has the largest radius?

Discussion

7648.	The valence electrons of B, Ne, S respectively are:
Answer» The valence electrons of B, Ne, S respectively are:

Discussion

7649.	Define the following : (a) Sol (b) Aerosol (c) Emulsion (d) Foam Give one example of each.
Answer» Define the following : (a) Sol (b) Aerosol (c) Emulsion (d) Foam Give one example of each.

7649.

Define the following : (a) Sol (b) Aerosol (c) Emulsion (d) Foam Give one example of each.

Answer»

Define the following :

(a) Sol (b) Aerosol (c) Emulsion (d) Foam

Give one example of each.

Discussion

7650.	Why blood is a mixture and graphite is an element?mention 2 reasons for each.
Answer» Why blood is a mixture and graphite is an element?mention 2 reasons for each.

Discussion

Explore topic-wise InterviewSolutions in .

The potato chips manufacturers uses___gas to flush the chips bags to prevent the chips from getting oxidized.

What is the empirical formula of a compound which contains 2.63 moles of N and 3.947 moles of O?

On rubbing the ebonite rod with fur :

Select conductor of heat from the following.

Match Column I with Column II with reference to Haber's process: Column IColumn IIA.Catalystp.BoschProcessB.Promotorq.QuicklimeC.DryingofAmmoniar.AluminiumOxideD.UseOfHydrogengass.Finelydividediron

Protons and neutrons are together called as__.

A solution contains sugar dissolved in 150 g of water. If mass of the solution is 200 g, calculate the concentration in terms of mass by mass percentage of the solution.

The positive charge on the nucleus is due to:

Question 40 What were the drawbacks of Rutherford's model of an atom?

The Tyndall effect is not observed in :

What is the dispersed phase?

Convert the following temperature to the Celsius scale. [2 MARKS]. (a) 293 K (b) 470 K

Write the electron-dot structure for sodium, oxygen and magnesium.

If the current is passed into the solution of an electrolyte [AIIMS 1979]

Which of the following is the correct formula of calcium bicarbonate?

Give the usual name for the following: Heat required to change the state of a substance without changing the temperature.

Which of the following statements are correct for a solution of H2O2 having a strength of 17g/litre ?

According to Dalton, different types of matter exists due to the different types of ___ constituting them.

The repeating unit present in Nylon-6 is

What is the chemical name of the following compound?

The increase in equivalent conductance of an electrolyte solution with dilution is due to the increase in [MP PMT 1996]

IUPAC name of tertiary butyl alcohol is-

Explain with examples that rate of diffusion decreases with increase in density of solutes

If a set has 8 subsets, then it contains ___ elements

When metal oxides or metal hydroxides react with ___, they form salt and water.

Which of the following shows Brownian motion?

Why does an atom needs to be stable?

In the given periodic table the coloured boxes represents elements and are grouped as _______________

The quantity of a solid that can be dissolved in a solvent, at a given temperature, is known as __________.

A Recent discovery on mars shows water presence on its surface. What will be the composition of one water molecule on the mars?

Reaction of granulated zinc with dil HCl results in formation of:

An element having configuration 1s22s22p63s23p64s1 will form:

If solution X has a pH of 6, then X is:

Question 4 (a) Lithium, sodium, potassium are all metals that react with water to liberate hydrogen gas. Is there any similarity in the atoms of these elements?

If work W is done in blowing a bubble of radius R from a soap solution, then the work done in blowing a bubble of radius 2R from the same solution is

Question 5 Compare all the proposed models of an atom given in this chapter.

Evaporation is the physical process of converting _______________.

What is meant by saying that metals are sonorous ?

Which of the following forms the bottom layer in the filtration tank in the purification and supply of drinking water in a city?

Question 1 (c) Which separation techniques will you apply for the separation of the following? c. Small pieces of metal in the engine oil of a car.

Why does a gun recoil when a bullet is fired ? Explain recoil? [3 MARKS]

Calculate Molarity of a solution having 50 milli moles dissolved in 10 mL of solution.

The oxidation number of manganese in MnO−4 is7

What happens when HCl is treated with an aqueous solution of AgNO3?

How many atoms are present in the following? [5 MARKS] 1. H2O2 2. H3PO4 3. CO2−3 4. C12H22O11 5. H2SO4

Question 10 (c) Classify the following into elements, compounds and mixtures. c. Sugar solution

Which of the following species has the largest radius?

The valence electrons of B, Ne, S respectively are:

Define the following : (a) Sol (b) Aerosol (c) Emulsion (d) Foam Give one example of each.

Why blood is a mixture and graphite is an element?mention 2 reasons for each.