15280 + Interview Questions in Chemistry Page 177 InterviewSolution

8801.	Which of the following ores cannot be concentrated by electromagnetic separation?
Answer» Which of the following ores cannot be concentrated by electromagnetic separation?

Discussion

8802.	The diagram shows a simple arrangement of the fountain experiment:(i) Name the two gases you have studied which can be used in this experiment.(ii) What is the common property demonstrated by this experiment?
Answer» The diagram shows a simple arrangement of the fountain experiment: (i) Name the two gases you have studied which can be used in this experiment. (ii) What is the common property demonstrated by this experiment?

Discussion

8803.	Name the process by which the volume of solid wastes can be reduced.
Answer» Name the process by which the volume of solid wastes can be reduced.

Discussion

8804.	Name the the salt used in fireproof materials
Answer» Name the the salt used in fireproof materials

Discussion

8805.	Which of the following represents cyclohexyne?
Answer» Which of the following represents cyclohexyne?

Discussion

8806.	Which of the following is diamagnetic 1. NO 2. NO23. ClO24. ClO2- And why?
Answer» Which of the following is diamagnetic 1. NO 2. NO2 3. ClO2 4. ClO2- And why?

Discussion

8807.	The element which has the maximum number of valence electrons is : (a) Na (b) P (c) Si (d) Al
Answer» The element which has the maximum number of valence electrons is : (a) Na (b) P (c) Si (d) Al

8807.

The element which has the maximum number of valence electrons is : (a) Na (b) P (c) Si (d) Al

Answer»

The element which has the maximum number of valence electrons is :

(a) Na (b) P (c) Si (d) Al

Discussion

8808.	Calculate the percentage of water in ferrous sulphate crystals [Fe = 56, S = 32, O = 16, H = 1].
Answer» Calculate the percentage of water in ferrous sulphate crystals [Fe = 56, S = 32, O = 16, H = 1].

Discussion

8809.	Which of the following compound of boron does not exist in the free form?
Answer» Which of the following compound of boron does not exist in the free form?

Discussion

8810.	Complete and balance the following equation: Al + NaOH + __________________
Answer» Complete and balance the following equation: Al + NaOH + __________________

Discussion

8811.	Which of the following is position and chain isomer of CH3CH2COCH2CH3?
Answer» Which of the following is position and chain isomer of ${CH}_{3} {CH}_{2} {COCH}_{2} {CH}_{3}$ ?

Discussion

8812.	what is maximum no.of electrons in an atom which can have the quantum numbers n=4,m=
Answer» what is maximum no.of electrons in an atom which can have the quantum numbers n=4,m=

Discussion

8813.	The most acidic oxide among the following is
Answer» The most acidic oxide among the following is

Discussion

8814.	Amphoteric oxide(s) of Mn is/are:
Answer» Amphoteric oxide(s) of Mn is/are:

Discussion

8815.	Which one is not called an anode reaction from the following
Answer» Which one is not called an anode reaction from the following

Discussion

8816.	Explain zwitterion form of aminoacid ?
Answer» Explain zwitterion form of aminoacid ?

Discussion

8817.	Which of the following processes is not a physical process of separation?
Answer» Which of the following processes is not a physical process of separation?

Discussion

8818.	What is the FC on the starred oxygen atom?
Answer» What is the FC on the starred oxygen atom?

8818.

What is the FC on the starred oxygen atom?

Answer»

What is the FC on the starred oxygen atom?

Discussion

8819.	Some non-metals when treated with NaOH disproportionate. They may be:(i) P4(ii) S8(iii) Cl2
Answer» Some non-metals when treated with $N a O H$ disproportionate. They may be: (i) $P_{4}$ (ii) $S_{8}$ (iii) $C l_{2}$

Discussion

8820.	What does antipyretic reduce?
Answer» What does antipyretic reduce?

Discussion

8821.	What are pH indicators?
Answer» What are pH indicators?

Discussion

8822.	The amount of zinc required to produce 1.12 ml ofH2 at STP on treatment with dilute HCI will be(2) 0.065 g(1) 65 g(4) 6.5 g(3) 32.5 x 104 g
Answer» The amount of zinc required to produce 1.12 ml ofH2 at STP on treatment with dilute HCI will be(2) 0.065 g(1) 65 g(4) 6.5 g(3) 32.5 x 104 g

Discussion

8823.	Choose the correct option:
Answer» Choose the correct option:

Discussion

8824.	46. Haemoglobin contains 0.25 iron by weight.The molecular weight of haemoglobin is 89600.Calculate the weight of K4{Fe(CN)6} that can be produced if all iron atoms from 4.48 kg haemoglobin are converted into K4{Fe(CN)6} through a series of reaction.
Answer» 46. Haemoglobin contains 0.25 iron by weight.The molecular weight of haemoglobin is 89600.Calculate the weight of K4{Fe(CN)6} that can be produced if all iron atoms from 4.48 kg haemoglobin are converted into K4{Fe(CN)6} through a series of reaction.

Discussion

8825.	8. Mercurous ion has magnetic moment of. how many b.m ?
Answer» 8. Mercurous ion has magnetic moment of. how many b.m ?

Discussion

8826.	31. Assertion: Whwn Iron-III Nitrate is mixed in potasium thiocyanate red colour appears and intensity of red colour decreases when oxalic acid is mixed. Reason: Solubility product of iorn thiocynate decreases due to presence of H+ ions
Answer» 31. Assertion: Whwn Iron-III Nitrate is mixed in potasium thiocyanate red colour appears and intensity of red colour decreases when oxalic acid is mixed. Reason: Solubility product of iorn thiocynate decreases due to presence of H+ ions

Discussion

8827.	Potatoes grow well on Anhad's farm which has soil with a pH of 5.5. Anhad decides to add a lot of lime to the soil so that he can grow broccoli in the same farm : (a) Do potatoes grow better in the acidic or alkaline soil? (b) Does broccoli grow better in the acidic or alkaline soil?
Answer» Potatoes grow well on Anhad's farm which has soil with a pH of 5.5. Anhad decides to add a lot of lime to the soil so that he can grow broccoli in the same farm : (a) Do potatoes grow better in the acidic or alkaline soil? (b) Does broccoli grow better in the acidic or alkaline soil?

8827.

Potatoes grow well on Anhad's farm which has soil with a pH of 5.5. Anhad decides to add a lot of lime to the soil so that he can grow broccoli in the same farm : (a) Do potatoes grow better in the acidic or alkaline soil? (b) Does broccoli grow better in the acidic or alkaline soil?

Answer»

Potatoes grow well on Anhad's farm which has soil with a pH of 5.5. Anhad decides to add a lot of lime to the soil so that he can grow broccoli in the same farm :

(a) Do potatoes grow better in the acidic or alkaline soil?

(b) Does broccoli grow better in the acidic or alkaline soil?

Discussion

8828.	What happens inside the nucleus that causes the emission of beta particle?
Answer» What happens inside the nucleus that causes the emission of beta particle?

Discussion

8829.	Which of the following will behave as a strong acid when added to water?
Answer» Which of the following will behave as a strong acid when added to water?

Discussion

8830.	What will be the nature of the product formed when magnesium reacts with oxygen?
Answer» What will be the nature of the product formed when magnesium reacts with oxygen?

Discussion

8831.	A student strongly heats hydrated ferrous sulphate salt in a dry test-tube. He would observe a :(1) yellow residue(2) brown residue(3) light green residue(4) white residue
Answer» A student strongly heats hydrated ferrous sulphate salt in a dry test-tube. He would observe a : (1) yellow residue (2) brown residue (3) light green residue (4) white residue

Discussion

8832.	Mass of 2 gram molecules of CO2 is
Answer» Mass of 2 gram molecules of CO2 is

Discussion

8833.	On analysis it was found that the black oxide of copper and red oxide of copper contain 80% and 89% of copper respctvly. Show that this data is in accordance with law of multiple proportion.
Answer» On analysis it was found that the black oxide of copper and red oxide of copper contain 80% and 89% of copper respctvly. Show that this data is in accordance with law of multiple proportion.

Discussion

8834.	Which scientist from the Renaissance period prepared ether from alcohol and sulphuric acid?
Answer» Which scientist from the Renaissance period prepared ether from alcohol and sulphuric acid?

Discussion

8835.	Two Bottles A and B contain 2M and 2m aqueous solutions of sulphuric acid respectively, then (d= 1g/ml) which is more concentrate
Answer» Two Bottles A and B contain 2M and 2m aqueous solutions of sulphuric acid respectively, then (d= 1g/ml) which is more concentrate

Discussion

8836.	Which electron removal from the valence shell of a carbon atom requires the highest energy?
Answer» Which electron removal from the valence shell of a carbon atom requires the highest energy?

Discussion

8837.	What are the different kind of energies explain them
Answer» What are the different kind of energies explain them

Discussion

8838.	Number of electrons required to deposit one mole Mg^{+2 }ions is
Answer» Number of electrons required to deposit one mole Mg^{+2 }ions is

Discussion

8839.	10.Electrolysis of dilute H2SO4 liberates gases at anode and cathode respectively provide me correct explination
Answer» 10.Electrolysis of dilute H2SO4 liberates gases at anode and cathode respectively provide me correct explination

Discussion

8840.	Molecular mass of ammonia is _____________ g. ___
Answer» Molecular mass of ammonia is _____________ g. ___

Discussion

8841.	A student dropped few pieces of marble in dilute hydrochloric acid contained in a test tube. The evolved gas was passed through lime water. What change would be observed in lime water? Write balanced chemical equations for both the changes observed
Answer» A student dropped few pieces of marble in dilute hydrochloric acid contained in a test tube. The evolved gas was passed through lime water. What change would be observed in lime water? Write balanced chemical equations for both the changes observed

Discussion

8842.	Find the number of oxygen atoms in 88g of CO2.
Answer» Find the number of oxygen atoms in 88g of ${C O}_{2}$ .

Discussion

8843.	Normally , the greater portion of circulating blood is present in the. (1) heart. (2) large arteries. (3) capillaries. (4) large veins
Answer» Normally , the greater portion of circulating blood is present in the. (1) heart. (2) large arteries. (3) capillaries. (4) large veins

Discussion

8844.	The atomic size of an atom is the ___.
Answer» The atomic size of an atom is the ___.

Discussion

8845.	Given, Van der waals equation for non-ideal gas(P+an2V2)(V−nb)=nRTThe term that correctly describes intermolecular forces of attraction between the molecules is:
Answer» Given, Van der waals equation for non-ideal gas $(P + \frac{a n^{2}}{V^{2}}) (V - n b) = n R T$ The term that correctly describes intermolecular forces of attraction between the molecules is:

Discussion

8846.	Name the oxide of sulphur which reacts with water to give sulphuric acid.
Answer» Name the oxide of sulphur which reacts with water to give sulphuric acid.

Discussion

8847.	Which element is used as a filler gas in fluorescent and incandescent light bulbs?
Answer» Which element is used as a filler gas in fluorescent and incandescent light bulbs?

Discussion

8848.	11. For preparation of au sol which metjod is used? Bredigs arc metjod or reduction
Answer» 11. For preparation of au sol which metjod is used? Bredigs arc metjod or reduction

Discussion

8849.	Give one example each of a chemical reaction characterised by:(a) evolution of a gas(b) formation of a precipitate(c) change in temperatureWrite equations of the reactions which take place in each case.
Answer» Give one example each of a chemical reaction characterised by: (a) evolution of a gas (b) formation of a precipitate (c) change in temperature Write equations of the reactions which take place in each case.

Discussion

8850.	47/200 Which one of the following bonds producesa solid that reflects light in the visible region andwhose electrical conductivity decreases withtemperature and has high melting point?Covalent bondingMetallic bondingvan der Waal's bondinglonic bonding
Answer» 47/200 Which one of the following bonds producesa solid that reflects light in the visible region andwhose electrical conductivity decreases withtemperature and has high melting point?Covalent bondingMetallic bondingvan der Waal's bondinglonic bonding

Discussion

Explore topic-wise InterviewSolutions in .

Which of the following ores cannot be concentrated by electromagnetic separation?

The diagram shows a simple arrangement of the fountain experiment:(i) Name the two gases you have studied which can be used in this experiment.(ii) What is the common property demonstrated by this experiment?

Name the process by which the volume of solid wastes can be reduced.

Name the the salt used in fireproof materials

Which of the following represents cyclohexyne?

Which of the following is diamagnetic 1. NO 2. NO23. ClO24. ClO2- And why?

The element which has the maximum number of valence electrons is : (a) Na (b) P (c) Si (d) Al

Calculate the percentage of water in ferrous sulphate crystals [Fe = 56, S = 32, O = 16, H = 1].

Which of the following compound of boron does not exist in the free form?

Complete and balance the following equation: Al + NaOH + __________________

Which of the following is position and chain isomer of CH3CH2COCH2CH3?

what is maximum no.of electrons in an atom which can have the quantum numbers n=4,m=

The most acidic oxide among the following is

Amphoteric oxide(s) of Mn is/are:

Which one is not called an anode reaction from the following

Explain zwitterion form of aminoacid ?

Which of the following processes is not a physical process of separation?

What is the FC on the starred oxygen atom?

Some non-metals when treated with NaOH disproportionate. They may be:(i) P4(ii) S8(iii) Cl2

What does antipyretic reduce?

What are pH indicators?

The amount of zinc required to produce 1.12 ml ofH2 at STP on treatment with dilute HCI will be(2) 0.065 g(1) 65 g(4) 6.5 g(3) 32.5 x 104 g

Choose the correct option:

46. Haemoglobin contains 0.25 iron by weight.The molecular weight of haemoglobin is 89600.Calculate the weight of K4{Fe(CN)6} that can be produced if all iron atoms from 4.48 kg haemoglobin are converted into K4{Fe(CN)6} through a series of reaction.

8. Mercurous ion has magnetic moment of. how many b.m ?

31. Assertion: Whwn Iron-III Nitrate is mixed in potasium thiocyanate red colour appears and intensity of red colour decreases when oxalic acid is mixed. Reason: Solubility product of iorn thiocynate decreases due to presence of H+ ions

Potatoes grow well on Anhad's farm which has soil with a pH of 5.5. Anhad decides to add a lot of lime to the soil so that he can grow broccoli in the same farm : (a) Do potatoes grow better in the acidic or alkaline soil? (b) Does broccoli grow better in the acidic or alkaline soil?

What happens inside the nucleus that causes the emission of beta particle?

Which of the following will behave as a strong acid when added to water?

What will be the nature of the product formed when magnesium reacts with oxygen?

A student strongly heats hydrated ferrous sulphate salt in a dry test-tube. He would observe a :(1) yellow residue(2) brown residue(3) light green residue(4) white residue

Mass of 2 gram molecules of CO2 is

On analysis it was found that the black oxide of copper and red oxide of copper contain 80% and 89% of copper respctvly. Show that this data is in accordance with law of multiple proportion.

Which scientist from the Renaissance period prepared ether from alcohol and sulphuric acid?

Two Bottles A and B contain 2M and 2m aqueous solutions of sulphuric acid respectively, then (d= 1g/ml) which is more concentrate

Which electron removal from the valence shell of a carbon atom requires the highest energy?

What are the different kind of energies explain them

Number of electrons required to deposit one mole Mg^{+2 }ions is

10.Electrolysis of dilute H2SO4 liberates gases at anode and cathode respectively provide me correct explination

Molecular mass of ammonia is _____________ g. ___

A student dropped few pieces of marble in dilute hydrochloric acid contained in a test tube. The evolved gas was passed through lime water. What change would be observed in lime water? Write balanced chemical equations for both the changes observed

Find the number of oxygen atoms in 88g of CO2.

Normally , the greater portion of circulating blood is present in the. (1) heart. (2) large arteries. (3) capillaries. (4) large veins

The atomic size of an atom is the ___.

Given, Van der waals equation for non-ideal gas(P+an2V2)(V−nb)=nRTThe term that correctly describes intermolecular forces of attraction between the molecules is:

Name the oxide of sulphur which reacts with water to give sulphuric acid.

Which element is used as a filler gas in fluorescent and incandescent light bulbs?

11. For preparation of au sol which metjod is used? Bredigs arc metjod or reduction

Give one example each of a chemical reaction characterised by:(a) evolution of a gas(b) formation of a precipitate(c) change in temperature​Write equations of the reactions which take place in each case.

47/200 Which one of the following bonds producesa solid that reflects light in the visible region andwhose electrical conductivity decreases withtemperature and has high melting point?Covalent bondingMetallic bondingvan der Waal's bondinglonic bonding

Molecular mass of ammonia is ___________ g. _

Give one example each of a chemical reaction characterised by:(a) evolution of a gas(b) formation of a precipitate(c) change in temperatureWrite equations of the reactions which take place in each case.