5083 + Interview Questions in Chemistry Page 86 InterviewSolution

4251.	The number of nucleons in an atom is called __________________.
Answer» The number of nucleons in an atom is called __________________.

Discussion

4252.	How many groups are there in the modern periodic table?
Answer» How many groups are there in the modern periodic table?

Discussion

4253.	Write the symbol for each of the following: gold and silver
Answer» Write the symbol for each of the following: gold and silver

Discussion

4254.	Can atoms be created Is Daltons atomic theory correct
Answer» Can atoms be created Is Daltons atomic theory correct

Discussion

4255.	A drop of solution (volume = 0.050 mL) contains 6×10−7mol of H3O+ ions. If H3O+ions disappear at a constant rate of 6.0×105 mol L−1S−1, how long will take for the H3O+ ions in the drop to disappear ?
Answer» A drop of solution (volume = 0.050 mL) contains $6 \times 10^{- 7} m o l o f H_{3} O^{+}$ ions. If $H_{3} O^{+}$ ions disappear at a constant rate of $6.0 \times 10^{5}$ mol $L^{- 1} S^{- 1}$ , how long will take for the $H_{3} O^{+}$ ions in the drop to disappear ?

Discussion

4256.	Question 1(e) Classify the changes involved in the following processes as physical or chemical changes: Beating aluminium to make aluminium foil
Answer» Question 1(e) Classify the changes involved in the following processes as physical or chemical changes: Beating aluminium to make aluminium foil

Discussion

4257.	Which is the device used to warm eggs of silk worm that facilates hatching?
Answer» Which is the device used to warm eggs of silk worm that facilates hatching?

Discussion

4258.	The pressure exerted by an ideal gas is numerically equal to _________ of the mean kinetic energy of translation per unit volume of the gas.
Answer» The pressure exerted by an ideal gas is numerically equal to _________ of the mean kinetic energy of translation per unit volume of the gas.

Discussion

4259.	Nitrogen and hydrogen combine together to form ammonia. Which type of reaction is this?
Answer» Nitrogen and hydrogen combine together to form ammonia. Which type of reaction is this?

Discussion

4260.	Select the correct formula for the Hydroxide ion.
Answer» Select the correct formula for the Hydroxide ion.

Discussion

4261.	The settling tanks through which the waste water is passed are called:
Answer» The settling tanks through which the waste water is passed are called:

Discussion

4262.	The apparatus used to manufacture cement from cement clinker is
Answer» The apparatus used to manufacture cement from cement clinker is

Discussion

4263.	What percentage of water is available as fresh water on the surface of the earth?
Answer» What percentage of water is available as fresh water on the surface of the earth?

Discussion

4264.	AgNO3(aq)+NaCl(aq)→AgCl(s)+NaNO3(aq). Above reaction is a:
Answer» $A g N O_{3 (a q)} + N a C l_{(a q)} \to A g C l_{(s)} + N a N O_{3 (a q)}$ . Above reaction is a:

Discussion

4265.	The answer which you have told "Francium" can you describe it by telling it's atomic number and mass And it's Protons, Electrons and Newtron
Answer» The answer which you have told "Francium" can you describe it by telling it's atomic number and mass And it's Protons, Electrons and Newtron

Discussion

4266.	Which element is used for producing fertilizers like urea etc?
Answer» Which element is used for producing fertilizers like urea etc?

Discussion

4267.	The diameter of a metallic ball is 4.2 cm. What is the mass of the ball, if the density of the metal is 8.9 g/cm3?[Assume π=227]
Answer» The diameter of a metallic ball is $4.2 c m .$ What is the mass of the ball, if the density of the metal is $8.9 g / c m^{3}$ ? [Assume $π = \frac{22}{7}$ ]

Discussion

4268.	Among the liquids, ___ is lustrous.
Answer» Among the liquids, ___ is lustrous.

Discussion

4269.	Which of the following acid is used in car batteries?
Answer» Which of the following acid is used in car batteries?

Discussion

4270.	The camel is not native to which following country?
Answer» The camel is not native to which following country?

Discussion

4271.	Which of the following are the properties of aluminum, which is essential for their uses in industries?
Answer» Which of the following are the properties of aluminum, which is essential for their uses in industries?

Discussion

4272.	Which of the following serves as "green lungs"?
Answer» Which of the following serves as "green lungs"?

Discussion

4273.	Studying deeper about the extinction Stephan found that maximum number of extinction of species took place in the 1800s, for example, quagga, great auk and so on. What was the major reason behind these extinctions?
Answer» Studying deeper about the extinction Stephan found that maximum number of extinction of species took place in the 1800s, for example, quagga, great auk and so on. What was the major reason behind these extinctions?

Discussion

4274.	In churning milk, the need for churning out butter is to ________.
Answer» In churning milk, the need for churning out butter is to ________.

Discussion

4275.	Dissolution of gases in liquids is
Answer» Dissolution of gases in liquids is

Discussion

4276.	For a Sodium atom, the Valence electron lies in the ___shell/energy level.
Answer» For a Sodium atom, the Valence electron lies in the ___shell/energy level.

Discussion

4277.	Permanent hardness of water can be removed by:
Answer» Permanent hardness of water can be removed by:

Discussion

4278.	Percolation rate is defined as
Answer» Percolation rate is defined as

Discussion

4279.	Which among the following biosphere reserves is named after the 5 caves built during the Mahabharat period and is dominated by Teak and Sal trees?
Answer» Which among the following biosphere reserves is named after the 5 caves built during the Mahabharat period and is dominated by Teak and Sal trees?

Discussion

4280.	The distinction between atoms and molecules was made by:
Answer» The distinction between atoms and molecules was made by:

Discussion

4281.	To neutralise sodium hydroxide solution (NaOH), which of the following substance can be used?
Answer» To neutralise sodium hydroxide solution (NaOH), which of the following substance can be used?

Discussion

4282.	Which of the following shows a pH range for an alkaline solution?
Answer» Which of the following shows a pH range for an alkaline solution?

Discussion

4283.	Which of the following method is used for preventing iron from rusting?
Answer» Which of the following method is used for preventing iron from rusting?

Discussion

4284.	Which of these is positively charged?
Answer» Which of these is positively charged?

Discussion

4285.	Which among the following method is preferred for separating a mixture of sodium chloride and sand using water?
Answer» Which among the following method is preferred for separating a mixture of sodium chloride and sand using water?

Discussion

4286.	The fibre obtained from ------------- is called mohair
Answer» The fibre obtained from ------------- is called mohair

Discussion

4287.	Which radioactive inert gas is used for cancer treatment?
Answer» Which radioactive inert gas is used for cancer treatment?

Discussion

4288.	In addition to formation of new products what changes do chemical changes acccompany.
Answer» In addition to formation of new products what changes do chemical changes acccompany.

Discussion

4289.	Electra is almost bored now. Stupid Nernst making her solve so many problems. But wait, this is her last one. If she completes this, she is through as an apprentice! Quick. Tell her what is the Gibb's energy of a Daniel Cell. Use F=96487 C mol−1
Answer» Electra is almost bored now. Stupid Nernst making her solve so many problems. But wait, this is her last one. If she completes this, she is through as an apprentice! Quick. Tell her what is the Gibb's energy of a Daniel Cell. Use $F = 96487 C m o l^{- 1}$

Discussion

4290.	Molar conductances of BaCl2,H2SO4 and HCl at infinite dilutions are x1,x2 and x3 respectively. Equivalent conductance of BaSO4 at infinite dilution will be :
Answer» Molar conductances of $B a C l_{2}, H_{2} S O_{4}$ and HCl at infinite dilutions are $x_{1}, x_{2}$ and $x_{3}$ respectively. Equivalent conductance of $B a S O_{4}$ at infinite dilution will be :

Discussion

4291.	The radical 'cuprous' has a valency of?
Answer» The radical 'cuprous' has a valency of?

Discussion

4292.	White phosphorous emits a greenish-white glow in the dark. It is called___
Answer» White phosphorous emits a greenish-white glow in the dark. It is called___

Discussion

4293.	What cuisine does R like?
Answer» What cuisine does R like?

Discussion

4294.	What is air pollution? Mention a few common causes of air pollution. [3 MARKS]
Answer» What is air pollution? Mention a few common causes of air pollution. [3 MARKS]

Discussion

4295.	Water evaporates from the pores of the pot to cause:
Answer» Water evaporates from the pores of the pot to cause:

Discussion

4296.	The charge to mass ratio of alpha particle approximately two the charge to mass ratio of proton is
Answer» The charge to mass ratio of alpha particle approximately two the charge to mass ratio of proton is

Discussion

4297.	150 ml of water percolates in a soil in 50 minutes, calculate the percolation rate of the soil.3
Answer» 150 ml of water percolates in a soil in 50 minutes, calculate the percolation rate of the soil. 3

Discussion

4298.	What is the difference between periodic and non periodics table ? Please send photos of both table .
Answer» What is the difference between periodic and non periodics table ? Please send photos of both table .

Discussion

4299.	The diluted solution of Calcium Hydroxide is called___ .
Answer» The diluted solution of Calcium Hydroxide is called___ .

Discussion

4300.	Which of the following acid is present in proteins?
Answer» Which of the following acid is present in proteins?

Discussion

Explore topic-wise InterviewSolutions in .

The number of nucleons in an atom is called __________________.

How many groups are there in the modern periodic table?

Write the symbol for each of the following: gold and silver

Can atoms be created Is Daltons atomic theory correct

A drop of solution (volume = 0.050 mL) contains 6×10−7mol of H3O+ ions. If H3O+ions disappear at a constant rate of 6.0×105 mol L−1S−1, how long will take for the H3O+ ions in the drop to disappear ?

Question 1(e) Classify the changes involved in the following processes as physical or chemical changes: Beating aluminium to make aluminium foil

Which is the device used to warm eggs of silk worm that facilates hatching?

The pressure exerted by an ideal gas is numerically equal to _________ of the mean kinetic energy of translation per unit volume of the gas.

Nitrogen and hydrogen combine together to form ammonia. Which type of reaction is this?

Select the correct formula for the Hydroxide ion.

The settling tanks through which the waste water is passed are called:

The apparatus used to manufacture cement from cement clinker is

What percentage of water is available as fresh water on the surface of the earth?

AgNO3(aq)+NaCl(aq)→AgCl(s)+NaNO3(aq). Above reaction is a:

The answer which you have told "Francium" can you describe it by telling it's atomic number and mass And it's Protons, Electrons and Newtron

Which element is used for producing fertilizers like urea etc?

The diameter of a metallic ball is 4.2 cm. What is the mass of the ball, if the density of the metal is 8.9 g/cm3?[Assume π=227]

Among the liquids, ___ is lustrous.

Which of the following acid is used in car batteries?

The camel is not native to which following country?

Which of the following are the properties of aluminum, which is essential for their uses in industries?

Which of the following serves as "green lungs"?

Studying deeper about the extinction Stephan found that maximum number of extinction of species took place in the 1800s, for example, quagga, great auk and so on. What was the major reason behind these extinctions?

In churning milk, the need for churning out butter is to ________.

Dissolution of gases in liquids is

For a Sodium atom, the Valence electron lies in the ___shell/energy level.

Permanent hardness of water can be removed by:

Percolation rate is defined as

Which among the following biosphere reserves is named after the 5 caves built during the Mahabharat period and is dominated by Teak and Sal trees?

The distinction between atoms and molecules was made by:

To neutralise sodium hydroxide solution (NaOH), which of the following substance can be used?

Which of the following shows a pH range for an alkaline solution?

Which of the following method is used for preventing iron from rusting?

Which of these is positively charged?

Which among the following method is preferred for separating a mixture of sodium chloride and sand using water?

The fibre obtained from ------------- is called mohair

Which radioactive inert gas is used for cancer treatment?

In addition to formation of new products what changes do chemical changes acccompany.

Electra is almost bored now. Stupid Nernst making her solve so many problems. But wait, this is her last one. If she completes this, she is through as an apprentice! Quick. Tell her what is the Gibb's energy of a Daniel Cell. Use F=96487 C mol−1

Molar conductances of BaCl2,H2SO4 and HCl at infinite dilutions are x1,x2 and x3 respectively. Equivalent conductance of BaSO4 at infinite dilution will be :

The radical 'cuprous' has a valency of?

White phosphorous emits a greenish-white glow in the dark. It is called___

What cuisine does R like?

What is air pollution? Mention a few common causes of air pollution. [3 MARKS]

Water evaporates from the pores of the pot to cause:

The charge to mass ratio of alpha particle approximately two the charge to mass ratio of proton is

150 ml of water percolates in a soil in 50 minutes, calculate the percolation rate of the soil.3

What is the difference between periodic and non periodics table ? Please send photos of both table .

The diluted solution of Calcium Hydroxide is called___ .

Which of the following acid is present in proteins?