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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.
| 2051. |
Nitrogen forms NO and NH . Show that equivalent mass is not a fixed quantity and that it varies from reaction to reaction. |
| Answer» Nitrogen forms NO and NH . Show that equivalent mass is not a fixed quantity and that it varies from reaction to reaction. | |
| 2052. |
What is plasma and Bose Einstein condensate |
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Answer» What is plasma and Bose Einstein condensate |
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| 2053. |
What is meant by a substance? |
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Answer» What is meant by a substance? |
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| 2054. |
20015, A:Sb (III) is not precipitated as sulphide when its alkaline solution H2S is passed R: The concentration of S2 ion in alkaline medium is inadequate for precipitation. |
| Answer» 20015, A:Sb (III) is not precipitated as sulphide when its alkaline solution H2S is passed R: The concentration of S2 ion in alkaline medium is inadequate for precipitation. | |
| 2055. |
A. Define matter. What are the characteristics of matter?B. When a teaspoon of sugar is added to half a glass of water and stirred, the water level in the glass remains unchanged. Give a reason. |
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Answer» A. Define matter. What are the characteristics of matter? B. When a teaspoon of sugar is added to half a glass of water and stirred, the water level in the glass remains unchanged. Give a reason. |
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| 2056. |
What is mass fraction and what is sum of mass fraction of solute and solvent ? |
| Answer» What is mass fraction and what is sum of mass fraction of solute and solvent ? | |
| 2057. |
What will form when cyclobutyl ethanol react with hcl in presence of heat |
| Answer» What will form when cyclobutyl ethanol react with hcl in presence of heat | |
| 2058. |
what are the peroxides and wh y the oxidation state of oxygen is -2? |
| Answer» what are the peroxides and wh y the oxidation state of oxygen is -2? | |
| 2059. |
How are X-rays produced? |
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Answer» How are X-rays produced? |
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| 2060. |
What is the correct match in the given options? |
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Answer» What is the correct match in the given options? |
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| 2061. |
67. How many have two different oxidation number same element 1) Cr O5 5) Na2 S4 O6 2) K3 Cr O8 6) Br3 O8 3) H3 PO5 7) H2 [Cu H4] 4) H2 N2 O2 8) NH4 NO2 |
| Answer» 67. How many have two different oxidation number same element 1) Cr O5 5) Na2 S4 O6 2) K3 Cr O8 6) Br3 O8 3) H3 PO5 7) H2 [Cu H4] 4) H2 N2 O2 8) NH4 NO2 | |
| 2062. |
17.The p-T graph for the given Mass of an ideal gas is shown in figure. What inference can be drawn regarding the change in volume(whether it is constant,increasing or decreasing)?? |
| Answer» 17.The p-T graph for the given Mass of an ideal gas is shown in figure. What inference can be drawn regarding the change in volume(whether it is constant,increasing or decreasing)?? | |
| 2063. |
How will you prove that water is a compound |
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Answer» How will you prove that water is a compound |
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| 2064. |
a gaseous mixtuere of equal mass of ch4 and o2 is stored over water . if total pressure is 0.5 atm then partial pressure of dry ch4 gas is ( aquaus tension 0.2 |
| Answer» a gaseous mixtuere of equal mass of ch4 and o2 is stored over water . if total pressure is 0.5 atm then partial pressure of dry ch4 gas is ( aquaus tension 0.2 | |
| 2065. |
Question 5.3 Translate the following statement into chemical equation and then balance it: Barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate. |
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Answer» Question 5.3 Translate the following statement into chemical equation and then balance it: Barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate. |
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| 2066. |
___ lead to the discovery of the Nucleus. |
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Answer» |
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| 2067. |
In general van der waal radius and covalent radius of an atom which one is high |
| Answer» In general van der waal radius and covalent radius of an atom which one is high | |
| 2068. |
How to find the no. Of atoms |
| Answer» How to find the no. Of atoms | |
| 2069. |
80 mL of solution contains 20 g of solute. Calculate the concentration in terms of mass by volume percentage of the solution. |
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Answer» 80 mL of solution contains 20 g of solute. Calculate the concentration in terms of mass by volume percentage of the solution. |
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| 2070. |
Minimum ionic radii among the following is of |
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Answer» Minimum ionic radii among the following is of |
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| 2071. |
The boiling point of water at 735 torr is 99.07°C. The mass of NaCl added in 100g water to make its boiling point 100°C is?(k=0.51 k kg/mol) |
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Answer» The boiling point of water at 735 torr is 99.07°C. The mass of NaCl added in 100g water to make its boiling point 100°C is?(k=0.51 k kg/mol) |
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| 2072. |
The mass of a single atom of an element x is 2.65 x 10−23 What is its gram atomic mass? __ |
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Answer» The mass of a single atom of an element x is 2.65 x 10−23 What is its gram atomic mass? |
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| 2073. |
He and Ar are monoatomic gases and their atomic weights are 4 and 40 .under similar conditions He will diffuse through semim permeable membrane 3.16 times as fast as Ar HOW? |
| Answer» He and Ar are monoatomic gases and their atomic weights are 4 and 40 .under similar conditions He will diffuse through semim permeable membrane 3.16 times as fast as Ar HOW? | |
| 2074. |
Chlorine has two isotopes, 3517Cl and 3717Cl. Calculate the average atomic mass of chlorine atom (in a.m.u.) based on the given information.S.NoIsotopesPercentage abundance (%)13517Cl7523717Cl25 35.5 |
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Answer» Chlorine has two isotopes, 3517Cl and 3717Cl. Calculate the average atomic mass of chlorine atom (in a.m.u.) based on the given information. S.NoIsotopesPercentage abundance (%)13517Cl7523717Cl25
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| 2075. |
If during an adiabetic process the pressure of mixture of gases is found to be proportional to square of its absolute temperature.The ratio cp/cv for mixture of gases is (1) 2 (2) 1.5 (3) 1.67 (4) 2.1 |
| Answer» If during an adiabetic process the pressure of mixture of gases is found to be proportional to square of its absolute temperature.The ratio cp/cv for mixture of gases is (1) 2 (2) 1.5 (3) 1.67 (4) 2.1 | |
| 2076. |
Fill in the blanks-i. The SI unit of force is ……….. (dyne, newton, joule)ii. The air pressure on our body is equal to the …………. pressure. (Atmospheric, sea bottom, space)iii. The SI unit of pressure is ……………… (N/m3,N/m2,kg/m2,Pa/m2) |
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Answer» Fill in the blanks- i. The SI unit of force is ……….. (dyne, newton, joule) ii. The air pressure on our body is equal to the …………. pressure. (Atmospheric, sea bottom, space) iii. The SI unit of pressure is ……………… (N/m3,N/m2,kg/m2,Pa/m2) |
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| 2077. |
Density of a gas is found to be 5.46 g/dm3 at 27°C at 2 bar pressure. What will be its density at STP? |
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Answer» Density of a gas is found to be 5.46 g/dm3 at 27°C at 2 bar pressure. What will be its density at STP? |
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| 2078. |
The linear speed of the seconds hand of a wall clock is 1 cm/s. The length of the seconds hand is nearly |
| Answer» The linear speed of the seconds hand of a wall clock is 1 cm/s. The length of the seconds hand is nearly | |
| 2079. |
a constant vol gas thermometer show pressure reading 50 cm of hg and 90 cm of hg at 0 C and 100 C resp. when pressure reading is 60 cm of h temp is |
| Answer» a constant vol gas thermometer show pressure reading 50 cm of hg and 90 cm of hg at 0 C and 100 C resp. when pressure reading is 60 cm of h temp is | |
| 2080. |
How latent heat of fusion is related to melting point |
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Answer» How latent heat of fusion is related to melting point |
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| 2081. |
If 0°celcius equals to 273 Kelvin and 100° celcius is equal to 373 Kelvin so is 1° celcius equals to 274 Kelvin ? If not, Why and How? |
| Answer» If 0°celcius equals to 273 Kelvin and 100° celcius is equal to 373 Kelvin so is 1° celcius equals to 274 Kelvin ? If not, Why and How? | |
| 2082. |
The smell of hot sizzling food reaches you several meters away, but to get the smell from cold food you have to go close. Why? |
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Answer» The smell of hot sizzling food reaches you several meters away, but to get the smell from cold food you have to go close. Why? |
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| 2083. |
And the Mnemonic Code for remembering the blood clotting factors in correct order by order. |
| Answer» And the Mnemonic Code for remembering the blood clotting factors in correct order by order. | |
| 2084. |
Why is ionisation energy of boron less than beryllium? |
| Answer» Why is ionisation energy of boron less than beryllium? | |
| 2085. |
43.What is relation between mole fraction and vapourisation when solution taken in a beaker |
| Answer» 43.What is relation between mole fraction and vapourisation when solution taken in a beaker | |
| 2086. |
which of the following order is correct about ionic radii ?1)Ti^4Cl- 4)P^3>P^5 |
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Answer» which of the following order is correct about ionic radii ? 1)Ti^4 |
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| 2087. |
Natural rubber has |
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Answer» Natural rubber has |
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| 2088. |
The amount of heat required to raise the temperature of one mole of an ideal mono atomic gas through 2oC at constant pressure is (universal gas constant = R) |
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Answer» The amount of heat required to raise the temperature of one mole of an ideal mono atomic gas through 2oC at constant pressure is (universal gas constant = R) |
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| 2089. |
Volume of an ice block is 1600cm3 and its density is 0.8gcm3. How much part of it remains above the surface of water, when it is kept in water? |
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Answer» Volume of an ice block is 1600cm3 and its density is 0.8gcm3. How much part of it remains above the surface of water, when it is kept in water?
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| 2090. |
why double displacement reaction is called as precipitate reaction? Is it correct to call double displacement reaction as precipitate reaction where precipitate is not formed? |
| Answer» why double displacement reaction is called as precipitate reaction? Is it correct to call double displacement reaction as precipitate reaction where precipitate is not formed? | |
| 2091. |
Name the three sub-atomic particles of an atom. |
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Answer» Name the three sub-atomic particles of an atom. |
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| 2092. |
How to find molecular mass and no of moles present in an atom. |
| Answer» How to find molecular mass and no of moles present in an atom. | |
| 2093. |
Which one of the following metals does not react with water at any conditions? |
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Answer» Which one of the following metals does not react with water at any conditions? |
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| 2094. |
The entropy change associated with theconversion of 1 kg of ice at 2vapours at 383 K is:(Specific heat of water liquid and watervapour are 4.2kJK-1kg-1and 2.0 kJ K-1kgvapourisation of water are 334 kJ kg-1and2491 kJ kg-1 , respectively). (log 273-2436,log 373-2.572, log 383-2.583)(1) 2.64 kJ kg1K-1(2) 8.49 kJ kg-1 K-1(3) 7.90 kJ kg-1 K-1(4) 9.26 kJ kg-1K-173 K to water; heat of liquid fusion and |
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Answer» The entropy change associated with the conversion of 1 kg of ice at 2 vapours at 383 K is: (Specific heat of water liquid and water vapour are 4.2kJK-1kg-1and 2.0 kJ K-1 kg vapourisation of water are 334 kJ kg-1and 2491 kJ kg-1 , respectively). (log 273-2436, log 373-2.572, log 383-2.583) (1) 2.64 kJ kg1K-1 (2) 8.49 kJ kg-1 K-1 (3) 7.90 kJ kg-1 K-1 (4) 9.26 kJ kg-1K-1 73 K to water ; heat of liquid fusion and |
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| 2095. |
How much should the pressure on a litre of water be changed to compress it by 0 10%. Elasticity of water is 2.2×10^9 Nm^{-2} |
| Answer» How much should the pressure on a litre of water be changed to compress it by 0 10%. Elasticity of water is 2.2×10^9 Nm^{-2} | |
| 2096. |
Which hydrogen like species will have the same radius as that of the 1st bohr's orbit of a hydrogen atom |
| Answer» Which hydrogen like species will have the same radius as that of the 1st bohr's orbit of a hydrogen atom | |
| 2097. |
Find the mass of 3.011×1026 molecules of NH3 in grams. |
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Answer» Find the mass of 3.011×1026 molecules of NH3 in grams. |
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| 2098. |
Which international body approves the names of elements? |
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Answer» Which international body approves the names of elements? |
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| 2099. |
Why did Rutherford select a gold foil in his alpha-ray scattering experiment? |
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Answer» Why did Rutherford select a gold foil in his alpha-ray scattering experiment? |
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| 2100. |
How do sometimes electrons gain energy? Which leads them to move to higher shells |
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Answer» How do sometimes electrons gain energy? Which leads them to move to higher shells |
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