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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 6101. |
What will happen to the height of the mercury column if we take a Barometer inside a deep pit/trench? |
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Answer» What will happen to the height of the mercury column if we take a Barometer inside a deep pit/trench? |
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| 6102. |
Which of the subshells below do not exist due to the constraints upon the azimuthal quantum number? |
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Answer» Which of the subshells below do not exist due to the constraints upon the azimuthal quantum number? |
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| 6103. |
(a) Define allotropy. (b) Comment on the allotrope of carbon that looks like a football. What is it known as? |
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Answer» (a) Define allotropy. (b) Comment on the allotrope of carbon that looks like a football. What is it known as? |
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| 6104. |
The rate of change of momentum with time is measured in: |
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Answer» The rate of change of momentum with time is measured in: |
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| 6105. |
An unknown gas diffuses three times as low as hydrogen gas diffuses under identical conditions. Molecular mass of the unknown gas is |
| Answer» An unknown gas diffuses three times as low as hydrogen gas diffuses under identical conditions. Molecular mass of the unknown gas is | |
| 6106. |
19. 74.5g of metal chloride contain 35.5 g of chlorine .The equivalent weight of the metal is? 1)19.5 2)35.5 3)39.0 4)78.0 |
| Answer» 19. 74.5g of metal chloride contain 35.5 g of chlorine .The equivalent weight of the metal is? 1)19.5 2)35.5 3)39.0 4)78.0 | |
| 6107. |
What is mass number of an atom which contains 28 protons,28 electrons,and 34 neutrons? |
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Answer» What is mass number of an atom which contains 28 protons,28 electrons,and 34 neutrons? |
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| 6108. |
63. The emf of the cell corresponding to reaction (Zn(s)) + (2H+) gives (Zn+²)(0.1M) + H2(g)1atm is 0.28V at 25degree celcius (Enote for Zn+²/Zn is -0.76V) which of the following is correct (1) the process is spontaneous (2)pH of solution is 5.6 initially (3) with the time pH of solution increases (4) pH of solution at hydrogen electrode is 8.63 |
| Answer» 63. The emf of the cell corresponding to reaction (Zn(s)) + (2H+) gives (Zn+²)(0.1M) + H2(g)1atm is 0.28V at 25degree celcius (Enote for Zn+²/Zn is -0.76V) which of the following is correct (1) the process is spontaneous (2)pH of solution is 5.6 initially (3) with the time pH of solution increases (4) pH of solution at hydrogen electrode is 8.63 | |
| 6109. |
when a certain metallic surface is illuminated with light of lambda the stopping potential is 3 V when the same surfaceis illluminated with light of wavelength 2 lambda the stopping potential is V.The threshold wavelength for this surface is |
| Answer» when a certain metallic surface is illuminated with light of lambda the stopping potential is 3 V when the same surfaceis illluminated with light of wavelength 2 lambda the stopping potential is V.The threshold wavelength for this surface is | |
| 6110. |
85.In HOF, why fluorine has +1 oxidation state and in B2H6 , why boron has -3 as oxidation state |
| Answer» 85.In HOF, why fluorine has +1 oxidation state and in B2H6 , why boron has -3 as oxidation state | |
| 6111. |
Compare thermal stability in S block elements.LiH NaH KH RbH CsH |
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Answer» Compare thermal stability in S block elements. LiH NaH KH RbH CsH |
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| 6112. |
24. Diff. Bw electrolytic beginning and electrolytic refuction |
| Answer» 24. Diff. Bw electrolytic beginning and electrolytic refuction | |
| 6113. |
If a diamond,there is a unit cell of carbpn atoms as fcc and if carbon atom is sp^3 hybidised, what fractions of void occupied by carbon atom? |
| Answer» If a diamond,there is a unit cell of carbpn atoms as fcc and if carbon atom is sp^3 hybidised, what fractions of void occupied by carbon atom? | |
| 6114. |
In which pair of ions both the species contain S - S bond? |
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Answer» In which pair of ions both the species contain S - S bond? |
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| 6115. |
What do you mean by the amorphous form of carbon? |
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Answer» What do you mean by the amorphous form of carbon? |
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| 6116. |
write a long note on quarks particle . |
| Answer» write a long note on quarks particle . | |
| 6117. |
Give reasons to justify water is a compound not a mixture. |
| Answer» Give reasons to justify water is a compound not a mixture. | |
| 6118. |
Below the boiling point of a liquid evaporation takes place. Then when the liquid is being heated to vaporise it, before reaching its boiling point does the liquid not evaporate? |
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Answer» Below the boiling point of a liquid evaporation takes place. Then when the liquid is being heated to vaporise it, before reaching its boiling point does the liquid not evaporate? |
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| 6119. |
59.Q. By what percentage should the pressure of a given mass of a gas be increased, so as to decrease its volume by 10% at a constant temperature? 1) 8.1% 2) 9.1% 3) 10.1% 4) 11.1% |
| Answer» 59.Q. By what percentage should the pressure of a given mass of a gas be increased, so as to decrease its volume by 10% at a constant temperature? 1) 8.1% 2) 9.1% 3) 10.1% 4) 11.1% | |
| 6120. |
how can we say that any matter is pure |
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Answer» how can we say that any matter is pure |
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| 6121. |
What is the number of atoms of hydrogen present in one dozen molecules of hydrogen gas? Convert the given number of hydrogen in terms of moles. |
| Answer» What is the number of atoms of hydrogen present in one dozen molecules of hydrogen gas? Convert the given number of hydrogen in terms of moles. | |
| 6122. |
Question 3(i)Samples of four metals A, B, C and D were taken and added to the following solution one by one. The results obtained have been tabulated as follows:MetalIron(II)sulphateCopper(II)sulphateZinc sulphateSilver nitrateA.No reactionDisplacementB.DisplacementNo reactionC.No reactionNo reactionNo reactionDisplacementD.No reactionNo reactionNo reactionNo reactionUse the table above to answer the following questions about metals A, B, C and D.(i) Which is the most reactive metal? |
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Answer» Question 3(i) Samples of four metals A, B, C and D were taken and added to the following solution one by one. The results obtained have been tabulated as follows: MetalIron(II)sulphateCopper(II)sulphateZinc sulphateSilver nitrateA.No reactionDisplacementB.DisplacementNo reactionC.No reactionNo reactionNo reactionDisplacementD.No reactionNo reactionNo reactionNo reaction Use the table above to answer the following questions about metals A, B, C and D. (i) Which is the most reactive metal? |
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| 6123. |
__________ is a process used to purify or concentrate liquids. |
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Answer» __________ is a process used to purify or concentrate liquids. |
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| 6124. |
What do you understand from the statement"relative atomic mass of sulphur is 32"? |
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Answer» What do you understand from the statement"relative atomic mass of sulphur is 32"? |
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| 6125. |
The correct order of thermal stability is: |
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Answer» The correct order of thermal stability is: |
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| 6126. |
In quadrilateral PQRS, if ∠P = 60o and ∠Q : ∠R : ∠S = 2 : 3 : 7, then ∠S = |
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Answer» In quadrilateral PQRS, if ∠P = 60o and ∠Q : ∠R : ∠S = 2 : 3 : 7, then ∠S = |
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| 6127. |
In which fuel gas hydrogen is NOT a main constituent? |
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Answer» In which fuel gas hydrogen is NOT a main constituent? |
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| 6128. |
निम्नलिखित प्रश्न का उत्तर (25-30 शब्दों में) लिखिए −अखाड़े की मिट्टी की क्या विशेषता होती है? |
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Answer» निम्नलिखित प्रश्न का उत्तर (25-30 शब्दों में) लिखिए − अखाड़े की मिट्टी की क्या विशेषता होती है? |
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| 6129. |
Cr+2and Mn+3 have same electronic configuration ,but Cr+2 is redusing reagent and Mn+3 is oxidizing reagent . Why? |
| Answer» Cr+2and Mn+3 have same electronic configuration ,but Cr+2 is redusing reagent and Mn+3 is oxidizing reagent . Why? | |
| 6130. |
The general electronic configuration of lanthanides is |
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Answer» The general electronic configuration of lanthanides is |
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| 6131. |
Match List −I with List −II:List - I (Name of oxo acid)List - II (Oxidation state of P)(a)Hypophosphorous acid(i)+5(b)Orthophosphoric acid(ii)+4(c)Hypophosphoric acid(iii)+3(d)Orthophosphorous acid(iv)+2(v)+1Choose the correct answer from the options given below: |
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Answer» Match List −I with List −II: |
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| 6132. |
31.Distinction between law of constant proportion and law of multiple proportion |
| Answer» 31.Distinction between law of constant proportion and law of multiple proportion | |
| 6133. |
What do you understand by gas? |
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Answer» What do you understand by gas? |
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| 6134. |
43. Calculate standard heat of formation of CS2. Given that standard heat of combustion of C, S and CS2 are –393.3, –293.72 and –1108.76 kJ mol–1 |
| Answer» 43. Calculate standard heat of formation of CS2. Given that standard heat of combustion of C, S and CS2 are –393.3, –293.72 and –1108.76 kJ mol–1 | |
| 6135. |
Question 05.Sodium carbonate is a basic salt because it is a salt of(a) strong acid and strong base(b) weak acid and weak base(c) strong acid and weak base(d) weak acid and strong base |
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Answer» Question 05. |
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| 6136. |
In a sample electron is jumps from 5th excited state to ground state then number for f spectral lines in n visible range will be |
| Answer» In a sample electron is jumps from 5th excited state to ground state then number for f spectral lines in n visible range will be | |
| 6137. |
Which preservation method is used in the following? |
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Answer» Which preservation method is used in the following? |
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| 6138. |
Laws of chemical combinations can be explained on the basis of: |
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Answer» Laws of chemical combinations can be explained on the basis of: |
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| 6139. |
49.When ethyl alcohol and acetic acid mixed together in equimolar proportions equillibrum is attained when two third of the acid and alcohol are consumed. The equillibrum constant of the reaction is |
| Answer» 49.When ethyl alcohol and acetic acid mixed together in equimolar proportions equillibrum is attained when two third of the acid and alcohol are consumed. The equillibrum constant of the reaction is | |
| 6140. |
Crystal of substance change the colour of heating is a closed vessel but regained it after sometime when they were allowed to cool down . explain the phenomenon involved |
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Answer» Crystal of substance change the colour of heating is a closed vessel but regained it after sometime when they were allowed to cool down . explain the phenomenon involved |
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| 6141. |
Which is the non-metal that exist in the liquid state? |
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Answer» Which is the non-metal that exist in the liquid state? |
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| 6142. |
For the reaction, PbO + H2 → Pb + H2O , Which of the following statements is incorrect? |
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Answer» For the reaction, PbO + H2 → Pb + H2O , Which of the following statements is incorrect? |
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| 6143. |
There are two solution where first one is pure or only solvent is present and another is concentrated or solute is also present . Which solution would have more osmotic pressure? |
| Answer» There are two solution where first one is pure or only solvent is present and another is concentrated or solute is also present . Which solution would have more osmotic pressure? | |
| 6144. |
What is the general name of : (a) rigid form of matter ? (b) fluid form of matter ? |
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Answer» What is the general name of : (a) rigid form of matter ? (b) fluid form of matter ? |
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| 6145. |
what volume of o2 required to completely burn 1l of CnHmOx in identical condition |
| Answer» what volume of o2 required to completely burn 1l of CnHmOx in identical condition | |
| 6146. |
17. 1)1.44 gm Titanium (atomic mass = 48) reacted with excess of O2 and produce 'n' gm of non-stoichiometric compound Ti1.44 O . The value of 'n' is |
| Answer» 17. 1)1.44 gm Titanium (atomic mass = 48) reacted with excess of O2 and produce 'n' gm of non-stoichiometric compound Ti1.44 O . The value of 'n' is | |
| 6147. |
Slide the number of water molecules present in washing soda.10 |
Answer» Slide the number of water molecules present in washing soda.
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| 6148. |
___beetle gives out a bad smell from its body to protect itself from predators. |
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Answer» |
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| 6149. |
What is the mass number of element X which has 8 electrons and 8 neutrons?16 |
Answer» What is the mass number of element X which has 8 electrons and 8 neutrons?
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| 6150. |
What are aqueous solutions? |
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Answer» What are aqueous solutions? |
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