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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.
| 4151. |
What is thermal, photolytic and electrolysis decomposition? |
| Answer» What is thermal, photolytic and electrolysis decomposition? | |
| 4152. |
Draw an diagram and explain the electroplating of any metal. |
| Answer» Draw an diagram and explain the electroplating of any metal. | |
| 4153. |
The inversion of canesugar proceeds with half life cycle of 600 minutes at pH =5at any concentration of sugar .However,at pH =6 the half cycle change to 60 minutes . What is rate law expression for inversion of sugarcane? |
| Answer» The inversion of canesugar proceeds with half life cycle of 600 minutes at pH =5at any concentration of sugar .However,at pH =6 the half cycle change to 60 minutes . What is rate law expression for inversion of sugarcane? | |
| 4154. |
Find the volume ratio of the reactant O2 and NO gases needed respectively to produce nitrogen dioxide gas?2NO(g)+O2(g)→2NO2(g) |
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Answer» Find the volume ratio of the reactant O2 and NO gases needed respectively to produce nitrogen dioxide gas? |
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| 4155. |
In the electrolysis of water (A) name the gas collected at anode and cathode. (B) why is dilute H2SO4 isadded to water (C) why is the volume of gas collected at one electrode double than the other |
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Answer» In the electrolysis of water (A) name the gas collected at anode and cathode. (B) why is dilute H2SO4 isadded to water (C) why is the volume of gas collected at one electrode double than the other |
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| 4156. |
What is the meaning of titration?? |
| Answer» What is the meaning of titration?? | |
| 4157. |
___ is the grade of coal that has the lowest carbon content. |
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Answer» |
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| 4158. |
Give the IUPAC names of the following compounds numbered (i) to (v). The IUPAC names of the compounds on the left are to guide you into giving the correct names of the compounds on the right. |
Answer» Give the IUPAC names of the following compounds numbered (i) to (v). The IUPAC names of the compounds on the left are to guide you into giving the correct names of the compounds on the right.    .png)
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| 4159. |
Out of the following properties, which property is generally not exhibited by NaBr lattice? |
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Answer» Out of the following properties, which property is generally not exhibited by NaBr lattice?
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| 4160. |
Explain why a salt which does not conduct electricity in the solid state becomes a good conductor in a molten state. |
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Answer» Explain why a salt which does not conduct electricity in the solid state becomes a good conductor in a molten state. |
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| 4161. |
For an A.P. tn=2n+3, what is the formula for Sn? |
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Answer» For an A.P. tn=2n+3, what is the formula for Sn? |
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| 4162. |
1 mol of KCLO3 is thermally decomposed and excess of aluminium is burnt in the gaseous product. how many moles of Al2O3 are formed |
| Answer» 1 mol of KCLO3 is thermally decomposed and excess of aluminium is burnt in the gaseous product. how many moles of Al2O3 are formed | |
| 4163. |
For the reaction A+B→C+D ΔH=−20 kJ mol−1 . The activation energy of the forward reaction is 85kJ mol–1. The activation energy for backward reaction is |
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Answer» For the reaction A+B→C+D ΔH=−20 kJ mol−1 . The activation energy of the forward reaction is 85kJ mol–1. The activation energy for backward reaction is |
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| 4164. |
The most abundant metal present in the Earth's crust is ____. |
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Answer» The most abundant metal present in the Earth's crust is ____. |
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| 4165. |
(a) Give the electronic configurations of sodium and chlorine.(b) Write the electron-dot structures for sodium and chlorine atoms.(c) Describe the formation of sodium chloride from sodium and chlorine by the transfer of electrons. What changes take place in the electronic configurations of sodium and chlorine during the formation of sodium chloride?(d) Write any two properties of ionic compounds. |
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Answer» (a) Give the electronic configurations of sodium and chlorine. (b) Write the electron-dot structures for sodium and chlorine atoms. (c) Describe the formation of sodium chloride from sodium and chlorine by the transfer of electrons. What changes take place in the electronic configurations of sodium and chlorine during the formation of sodium chloride? (d) Write any two properties of ionic compounds. |
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| 4166. |
The molar mass of Nitric acid, HNO3 is |
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Answer» The molar mass of Nitric acid, HNO3 is |
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| 4167. |
Who is known as the father of nuclear physics? |
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Answer» Who is known as the father of nuclear physics? |
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| 4168. |
Which of the following substances has free electrons to conduct electricity? |
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Answer» Which of the following substances has free electrons to conduct electricity? |
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| 4169. |
ntA deuteron and an alpha particle are placed in an electric field. The force acting on them are F1 and F2 and their acceleration are a1 and a2 respectively, thenn nt(1) F1 = F2n nt(2) F1 > F2n nt(3) a1 = a2n nt(4) a1 is not equal to a2n |
| Answer» ntA deuteron and an alpha particle are placed in an electric field. The force acting on them are F1 and F2 and their acceleration are a1 and a2 respectively, thenn nt(1) F1 = F2n nt(2) F1 > F2n nt(3) a1 = a2n nt(4) a1 is not equal to a2n | |
| 4170. |
Element X forms a chloride of formula XCl4 which is solid with a low melting point. X would most likely belong to the same group in the periodic table as that of |
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Answer» Element X forms a chloride of formula XCl4 which is solid with a low melting point. X would most likely belong to the same group in the periodic table as that of |
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| 4171. |
7. What is the degree of dissociation when 100 ml of pure water at 25^° c? |
| Answer» 7. What is the degree of dissociation when 100 ml of pure water at 25^° c? | |
| 4172. |
What is the reaction between acetone and ammonia |
| Answer» What is the reaction between acetone and ammonia | |
| 4173. |
Metallic sulphide reacting with hydrochloric acid forms salt and ___. |
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Answer» Metallic sulphide reacting with hydrochloric acid forms salt and |
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| 4174. |
46. At 10^° C rate of the reaction is given by X.Ic the temperature coefficient is 2 what is the rate of the reaction at 100^° C |
| Answer» 46. At 10^° C rate of the reaction is given by X.Ic the temperature coefficient is 2 what is the rate of the reaction at 100^° C | |
| 4175. |
How do metals attain stability? Explain with examples. |
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Answer» How do metals attain stability? Explain with examples. |
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| 4176. |
For the given sequence of the reactions:A+2B→2C+D yield=50%C+12E→4F+3G yield=20%2F+3H→2I+J yiled=30%If 10 moles of A reacts with 21 moles of B then find the number of moles of I produced by 11 mol of H if E is present in excess. |
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Answer» For the given sequence of the reactions: |
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| 4177. |
[Ag(NH3)2][Ag(CN)2] NAMING? |
| Answer» [Ag(NH3)2][Ag(CN)2] NAMING? | |
| 4178. |
The group which is responsible for acidic behavior in acetic acid is: |
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Answer» The group which is responsible for acidic behavior in acetic acid is: |
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| 4179. |
Do we need to memerize all 118 element's atomic and Atomic mass numbers in modern periodic table |
| Answer» Do we need to memerize all 118 element's atomic and Atomic mass numbers in modern periodic table | |
| 4180. |
why CCl_2does not conduct electricity? |
| Answer» why CCl_2does not conduct electricity? | |
| 4181. |
Question 4 Which gas is produced when dilute hydrochloric acid is added to a reactive metal? Write the chemical reaction when iron reacts with dilute H2SO4. |
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Answer» Question 4 Which gas is produced when dilute hydrochloric acid is added to a reactive metal? Write the chemical reaction when iron reacts with dilute H2SO4. |
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| 4182. |
23. The atomic masses of He and Ne are 4 and 20 amu respectively. The value of the de Broglie wavelength of He gas at 73 C is M times that of the de Broglie wavelength of Ne at 727 C M |
| Answer» 23. The atomic masses of He and Ne are 4 and 20 amu respectively. The value of the de Broglie wavelength of He gas at 73 C is M times that of the de Broglie wavelength of Ne at 727 C M | |
| 4183. |
76. what volume of ccl4 (d=1.6g/cc) contains 6.02 10 25 ccl4 molecules |
| Answer» 76. what volume of ccl4 (d=1.6g/cc) contains 6.02 10 25 ccl4 molecules | |
| 4184. |
I saw in the video that Anand sir said that triple bond is stronger than double bond and double bond is stronger than single bond. After when he was teaching saturated and unsaturated compounds he told that single bond is stronger than double double bond can easily be break and single bond Is stronger than double it can't be break easily. I just confused where should I go this side or that side?😳🤪 |
| Answer» I saw in the video that Anand sir said that triple bond is stronger than double bond and double bond is stronger than single bond. After when he was teaching saturated and unsaturated compounds he told that single bond is stronger than double double bond can easily be break and single bond Is stronger than double it can't be break easily. I just confused where should I go this side or that side?😳🤪 | |
| 4185. |
State the information obtained from the chemical formula of a compound. |
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Answer» State the information obtained from the chemical formula of a compound. |
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| 4186. |
Why Mn have low melting point as compare to Cr still both have half filled d orbital |
| Answer» Why Mn have low melting point as compare to Cr still both have half filled d orbital | |
| 4187. |
Why does a new aluminium vessel lose shine so soon after use? |
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Answer» Why does a new aluminium vessel lose shine so soon after use? |
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| 4188. |
Explain:1. Oxidation method (Oxidative refining) 2. Electrolytic refining [5 MARKS] |
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Answer» Explain:1. Oxidation method (Oxidative refining) 2. Electrolytic refining [5 MARKS] |
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| 4189. |
Which of the follwing can be used to distinguish between ethane and ethene? |
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Answer» Which of the follwing can be used to distinguish between ethane and ethene? |
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| 4190. |
A compound with a molar mass of 544.0 g/mol is made up of 26.5 g of carbon , 2.94 grams of hydrogen and 70.6 grams of oxygen . what is its empirical and molecular formula? |
| Answer» A compound with a molar mass of 544.0 g/mol is made up of 26.5 g of carbon , 2.94 grams of hydrogen and 70.6 grams of oxygen . what is its empirical and molecular formula? | |
| 4191. |
20. WHY PHENOXIDE ION IS MORE STABLE THAN PHENOL?? |
| Answer» 20. WHY PHENOXIDE ION IS MORE STABLE THAN PHENOL?? | |
| 4192. |
Which subshell is at a higher energy level in multi electron species 4f or 5d? |
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Answer» Which subshell is at a higher energy level in multi electron species 4f or 5d? |
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| 4193. |
100 ml of M/10 H2SO4 , 200 ml of M/5 Na2CO3 and 200 ml of M/8 HCl are mixed together. 50 ml of this mixture can be completely titrated by (a) 300 ml of M/10 KOH (b) 35 ml of 0.1M H2C2O4 (c) 7 ml of M/6 H3PO4 (d) 17.5 ml of 0.2M HNO3 |
| Answer» 100 ml of M/10 H2SO4 , 200 ml of M/5 Na2CO3 and 200 ml of M/8 HCl are mixed together. 50 ml of this mixture can be completely titrated by (a) 300 ml of M/10 KOH (b) 35 ml of 0.1M H2C2O4 (c) 7 ml of M/6 H3PO4 (d) 17.5 ml of 0.2M HNO3 | |
| 4194. |
Which of the following is not odd electron species?Options: NO N2O ClO2 N2O4 |
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Answer» Which of the following is not odd electron species? Options: NO N2O ClO2 N2O4 |
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| 4195. |
For a chemical reaction R→P, the variation in the concentration (R) vs. time (t) plot is given as (i) Predict the order of the reaction. (ii) What is the slope of the curve ? |
Answer» For a chemical reaction R→P, the variation in the concentration (R) vs. time (t) plot is given as  (i) Predict the order of the reaction. (ii) What is the slope of the curve ? |
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| 4196. |
Why can't sulphur form as many bonds ,allotrpes as carbon , although both of them have the same valency of 4?, |
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Answer» Why can't sulphur form as many bonds ,allotrpes as carbon , although both of them have the same valency of 4?, |
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| 4197. |
The compound which has one isopropyl group is(1) 2, 2, 3, 3 -Tetramethylpentane (2) 2, 2 -Dimethyl pentane(3) 2, 2, 3-Trimethylpentane (4) 2-Methyl pentane |
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Answer» The compound which has one isopropyl group is (1) 2, 2, 3, 3 -Tetramethylpentane (2) 2, 2 -Dimethyl pentane (3) 2, 2, 3-Trimethylpentane (4) 2-Methyl pentane |
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| 4198. |
13. H+(aq) + oh- (aq) = h2o(l) H = - 57kj/mol Nh4oh(aq) = nh4+ + oh- H = +5 kj/mol Calculate the value of heat of neutralization of NH4OH solution with strong acid, when it is 20% ionised. A. -52kj/mol B. -51kj/mol C. -53kj/mol D. -57kj/mol |
| Answer» 13. H+(aq) + oh- (aq) = h2o(l) H = - 57kj/mol Nh4oh(aq) = nh4+ + oh- H = +5 kj/mol Calculate the value of heat of neutralization of NH4OH solution with strong acid, when it is 20% ionised. A. -52kj/mol B. -51kj/mol C. -53kj/mol D. -57kj/mol | |
| 4199. |
Give an example of an element discovered after Mendeleev gave the periodic table |
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Answer» Give an example of an element discovered after Mendeleev gave the periodic table |
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| 4200. |
Burst out all the measurements in square units. |
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Answer» Burst out all the measurements in square units. |
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