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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.
| 151. |
The solubility of gases in liquid is masimum at:-A. Low temperature and low pressureB. Low temperature and high pressureC. High temperature and high pressureD. High temperature and low pressure |
| Answer» Correct Answer - B | |
| 152. |
Which of the following reaction from benzene carbaldehyde as a product : A. a,b,c,dB. a,b,d,e,C. a,b,e,fD. a,b,c,d,e,f |
| Answer» Correct Answer - D | |
| 153. |
How much time is required for complete decomposition of 4 moles of water using 4 ampere?A. 96500 secB. `3.85xx10^(4)sec`C. `1.93xx10^(5)sec`D. `2.92xx10^(5)sec` |
| Answer» Correct Answer - C | |
| 154. |
For graphite which is possible ?A. `a=b=c,alpha=beta=gamma=90^(@)`B. `a=b!=c,alpha=beta=gamma=90^(@)`C. `a=b!=c,alpha=beta=90^(@),gamma=120^(@)`D. `a!=b!=c,alpha=beta=gamma=90^(@)` |
| Answer» Correct Answer - C | |
| 155. |
Due to excess of lithium makes LiCI crystals-A. yellowB. violetC. pinkD. white |
| Answer» Correct Answer - C | |
| 156. |
Which of the following is a tetrabasic acid?A. Orthophosphorus acidB. Orthophophoric acidC. Metaphosphoric acidD. Pyrophosphoric acid |
| Answer» Correct Answer - D | |
| 157. |
Number of electrons having `m_(l)=0` for sodium atom isA. 2B. 7C. 9D. 8 |
| Answer» Correct Answer - B | |
| 158. |
How many electrons in an atom can have n = 3, l = 1, m =-1 and `s = + 1//2`A. 1B. 2C. 4D. 6 |
| Answer» Correct Answer - A | |
| 159. |
`Na(s)toNa(g)`, the heat of reaction is called asA. Heat of vaporisationB. Heat of atomisationC. Heat of sublimationD. Both (2) and(3) |
| Answer» Correct Answer - D | |
| 160. |
Given the enthalpy of formation of `CO_(2)(g)` is -94.0 KJ, of CaO(s) is -152 KJ, and the enthalpy of the reaction `CaCO_(3)(s) rarr CaO(s)+CO_(2)(g)` is 42KJ, the enthalpy of formation of `CaCO_(3) (s)` isA. `-42kJ`B. `-202kJ`C. `202kJ`D. `-288kJ` |
| Answer» Correct Answer - B | |
| 161. |
Match the column : `{:(,"Column-I Structure",,"Column-II Type of detergents",),((i),CH_(3)(CH_(2))_(16)COO(CH_(2)CH_(2)O)_(n)CH_(2)CH_(2)OH,(a),"Cationic detergent",),((ii),C_(17)H_(35)COO^(-)Na^(+),(b),"Anionic detergent",),((iii),CH_(3)-(CH_(2))_(10)CH_(2)Soverset(ө)(O)_(3)Noverset(o+)(a),(c ),"Nonionic detergent",),((iv),[CH_(3)(CH_(2))_(15)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)(N)-CH_(3)]^(o+)overset(ө)(Br),(d),"Soap",):}`A. i-a, ii-b, iii-c, iv-dB. i-a, ii-b, iii-d, iv-cC. i-c, ii-d, iii-b, iv-aD. i-c, ii-d, iii-a, iv-b |
| Answer» Correct Answer - C | |
| 162. |
11 g ,3 gA. 11 g, zeroB. 1 g,3 gC. 14 g,3 gD. 11 g ,3 g |
| Answer» Correct Answer - C | |
| 163. |
For the reaction `H_(2)(g)+I_(2)(g)hArr2HI(g)`, the equilibrium constant will change withA. total pressureB. catalystC. concentration of `H_(2)` and `I_(2)`D. temperature |
| Answer» Correct Answer - D | |
| 164. |
Naphthalene, a white solid used to make mothballs, has a vapour pressure of 0.10 mm Hg at `27^(@)C`. Hence `K_(p)` and `K_(c)` for the equilibruim are `: C_(10)Hg(s)hArr C_(10)Hg(g)`A. 0.10 ,0.10B. `0.10 ,4.1 xx10^(-3)`C. `1.32xx10^(-4) ,5.34xx10^(-6)`D. `5.36xx10^(-6) ,1.32xx10^(-4)` |
| Answer» Correct Answer - C | |
| 165. |
A gas X is diffused `(1)/(sqrt2)`time slower than `SO_(2)` at same temperature calculate V.D of gas X :-A. 64B. 128C. 32D. 16 |
| Answer» Correct Answer - A | |
| 166. |
Which gas can most readly liquifiedA. `NH_(3)`B. `CI_(2)`C. `SO_(2)`D. `CO_(2)` |
| Answer» Correct Answer - C | |
| 167. |
Which of the following reactions of glucose can be explained only by its cyclic structure?A. Glucose forms pentaacetateB. Glucose react with hydroxylamine to form an oximeC. Pentacetate of glucose does not react with hydroxylamineD. Glucose is oxidised by Bromine water to gluconic acid |
| Answer» Correct Answer - C | |
| 168. |
The unit cell with parameters `alpha=beta=gamma=90^(@)` and `a=b!=c` is :-A. cubicB. triclinicC. HexagonalD. Tetragonal |
| Answer» Correct Answer - D | |
| 169. |
`alpha`-D(+)-glucose and `beta`-D(+) glucose areA. position isomersB. anomersC. enantiomersD. conformers |
| Answer» Correct Answer - B | |
| 170. |
Glucose and fructose from identical osazones because :A. they are monosaccharideB. they are reducing sugarC. they are epimerD. their configuration differ only at C-1 and C-2 |
| Answer» Correct Answer - D | |
| 171. |
Invert sugar is :A. SucroseB. FructoseC. GlucoseD. Galactose |
| Answer» Correct Answer - A | |
| 172. |
Which of the following hormones contains iodineA. ThyroxineB. InsulinC. TetrostereoneD. Adernaline |
| Answer» Correct Answer - A | |
| 173. |
Which artificial sweetener contains chlorine?A. AspartameB. SaccharinC. SucraloseD. Alitame |
| Answer» Correct Answer - C | |
| 174. |
Ozone in stratosphere is depleted by:A. `C_(7)H_(16)`B. `CF_(2)Cl_(2)`C. `C_(6)H_(6)Cl_(6)`D. `C_(6)F_(6)` |
| Answer» Correct Answer - B | |
| 175. |
Which of the following reaction is correct :A. `CH_(3)CH_(2)-Br+KCNtoCH_(3)CH_(2)-NC`B. `CH_(3)CH_(2)-Br+AgCNtoCH_(3)CH_(2)-CN`C. D. |
| Answer» Correct Answer - D | |
| 176. |
The correct order for `E_(2)` reaction with alc. KOH will be :- A. `igtiigtiii`B. `iiigtiigti`C. `iigtigtiii`D. `iiigtigtii` |
| Answer» Correct Answer - A | |
| 177. |
Out of the following one which is correct for equilibrium state ? (a) `Delta G=0` (b) `Delta S=0` (c ) `r_(f)=r_(b)` (d) `E_(cell)=0`A. a,bB. only bC. a,c & dD. only c |
| Answer» Correct Answer - C | |
| 178. |
The half life of a first order reaction is 6 hours. How long will it take for the concentration of reactant to change from 0.8 M to 0.25 M ?A. 1.07 hourB. 5.1 hourC. 2.7 hourD. 10.07 hour |
| Answer» Correct Answer - D | |
| 179. |
Which of the following is the correct expression for Arrhenius equation ?A. `In(K_(2))/(K_(1))=(E_(a))/(R)((1)/(T_(1))-(1)/(T_(2)))`B. `"log"(K_(2))/(K_(1))=(E_(a))/(2.303)((T_(1)T_(2))/(T_(2)-T_(1)))`C. `In(K_(2))/(K_(1))=(E_(a))/(2.303R)((1)/(T_(1))-(1)/(T_(2)))`D. `(K_(2))/(K_(1))=(E_(a))/(2.303R)((T_(2)-T_(1))/(T_(1)T_(2)))` |
| Answer» Correct Answer - A | |
| 180. |
The concentration of a reactant in solution falls from (i) `0.5` M to `0.25` M in 5 hourse and from (ii) `1.0` M to `0.25` M in 10 hours The order of reaction isA. 2B. 1C. 3D. 0 |
| Answer» Correct Answer - B | |
| 181. |
Which of the following order is wrong-A. `NH_(3)ltPH_(3)ltAsH_(3)-"Acidic"`B. `LiltBeltBltC-"First IP"`C. `Al_(2)O_(3)ltMgOltNa_(2)OltK_(2)O-"Basic"`D. `Li^(+)ltNa^(+)ltK^(+)ltCs^(+)-"Ionic Radius"` |
| Answer» Correct Answer - B | |
| 182. |
`e^(-)` configuration of `._(90)` Th-A. `(n-2)f^(2),(n-1)d^(1)ns^(1)`B. `(n-2)f^(1),(n-1)d^(1)ns^(2)`C. `(n-2)f^(0),(n-1)d^(2)ns^(2)`D. `(n-2)f^(2),(n-1)d^(0)ns^(2)` |
| Answer» Correct Answer - C | |
| 183. |
Which is correct at equilibrium :-A. `DeltaG^(@)=O`B. `DeltaG=O`C. `DeltaS=O`D. `DeltaE=O` |
| Answer» Correct Answer - B | |
| 184. |
Match the column :- `{:(,"Column - I",,"Column - II",),(A,"Adiabatic process",P,q=0,),(B,"Isothermal process",Q,DeltaH=0,),(C,"Isoenthalpic process",R,DeltaT=0,),(D,"Isoentropic process",S,DeltaS=0,):}`A. `AtoP,BtoS,CtoQ,DtoR`B. `AtoQ,BtoP,CtoS,DtoR`C. `AtoP,BtoR,CtoQ,DtoS`D. `AtoP,BtoR,CtoS,DtoQ` |
| Answer» Correct Answer - C | |
| 185. |
An increase in equivalent conductance of a strong electrolyte with dilution is mainly due to:A. Increase in number of ionsB. Increase in ionic mobility of ionsC. 100% ionisation of electrolyte at normal dilutionD. Increase in both i.e. number of ions and ionic mobility of ions. |
| Answer» Correct Answer - B | |
| 186. |
In any binary azeotropic mixture :-A. `"volatility of A" gt"volatility of B"`B. `"volatility of A" lt"volatility of B"`C. `"volatility of A" ="volatility of B"`D. `"volatility of A" =2xx"volatility of B"` |
| Answer» Correct Answer - C | |
| 187. |
Criteria for spontaneity of process is :-A. Maximum randomnessB. Maximum energyC. Miximum energy and max randomnessD. Minimum randomness and max. energy |
| Answer» Correct Answer - C | |
| 188. |
Relation between (A) and (B) is A. EpimersB. AnomersC. Positional isomersD. Functional isomes |
| Answer» Correct Answer - B | |
| 189. |
Which relation of emf of a electrochemical cell is correct :-A. emf of cell = oxidation potential of anode - reduction potential of cathodeB. emf of cell = oxidation potential of anode + reduction potential of cathodeC. emf of cell = reduction potential of anode + reduction potential of cathodeD. All of these |
| Answer» Correct Answer - B | |
| 190. |
If `T_(1),T_(2) "and" T_(3)` are boiling points of component A, Component B and azeotropic mixture then which of the following relation is correct for a minimum boiling azeotrope :-A. `T_(1)ltT_(3)`B. `T_(2)ltT_(3)`C. `T_(3)ltT_(1)`D. `T_(3)=T_(2)` |
| Answer» Correct Answer - C | |
| 191. |
A reversible process is one in which :-A. external pressure is constant throughoutB. System is equilibrium at initial & final stageC. Driving force os slightly greater than oppsing forceD. All of the above |
| Answer» Correct Answer - C | |
| 192. |
The rate constant for a first order reaction whose half life is 480 sec, is :A. `1.44xx10^(-3)sec^(-1)`B. `1.44sec^(-1)`C. `0.72xx10^(-10)sec^(-1)`D. `2.88xx10^(-3)sec^(-1)` |
| Answer» Correct Answer - A | |
| 193. |
What is expression for Ksp for `Pbc_(2)` ?A. `[Pb^(2+)][2Cl^(-)]^(2)`B. `[Pb^(+)]//[2Cl^(-)]^(2)`C. `[Pb^(2+)][Cl^(-)]^(2)`D. `[Pb^(2+)]//[Cl^(-)]^(2)` |
| Answer» Correct Answer - C | |
| 194. |
Which is not correct match :A. `{:(Polymer,,,,Monomers),("Orlon",,,,"Acrylonitrile"):}`B. `{:(Polymer,,,,Monomers),("Nylon-6,6",,,,"Hexamethylene diamine and adipic acid"):}`C. `{:(Polymer,,,,Monomers),("Dacron",,,,"Ethylene glycol and terephthalic acid "):}`D. `{:(Polymer,,,,Monomers),("Caprolactum",,,,"Nylon-6,10 "):}` |
| Answer» Correct Answer - D | |
| 195. |
Buna-S is a polymer of :A. Butadiene onlyB. Buta-1,3-diene and styreneC. Styrene onlyD. Butadiene and acrylonitrile |
| Answer» Correct Answer - B | |
| 196. |
Which one of the following is not a polyamide polymers: (a) Nylon-6,6 (b) Nylon-6,10 ( c) Glylptal (d) DacroneA. a,bB. c,dC. a,cD. a,b,c |
| Answer» Correct Answer - B | |
| 197. |
Which is correct :-A. `{:("Process",,,,"Result"),((1)(Ti(H_(2)O)_(6))Cl_(3),,,,"Colour is intensified"):}`B. `{:("Process",,,,"Result"),((2)CuSO_(4)"reacts with"KCN,,,,K_(2)[Cu(CN)_(4)] "is formed"):}`C. `{:("Process",,,,"Result"),(KMnO_(4)"reacts with" HF,,,,MnF_(6) "is formed"):}`D. `{:("Process",,,,"Result"),(K_(2)MnO_(4)"reacts with" CO_(2),,,,KMnO_(4)"(purple)and"MnO_(2)"(brown) is formed"):}` |
| Answer» Correct Answer - D | |
| 198. |
`CrO_(4)^(2-)underset(pH=Y)overset(pH=X)(hArr)Cr_(2)O_(7)^(-2)` The pH values of (X) and (Y) are respectivelyA. 4 and 5B. 4 and 8C. 8 and 4D. 8 and 9 |
| Answer» Correct Answer - B | |
| 199. |
For which of the following gaseous reaction `K_(p)` is less than `K_(c)` at 298 K temp :-A. `N_(2)O_(4)hArr2NO_(2)`B. `2HIhArrH_(2)+F_(2)`C. `2SO_(2)+O_(2)hArr2SO_(3)`D. `N_(2)+O_(2)hArr2NO` |
| Answer» Correct Answer - C | |
| 200. |
At `25^(@)`C the equilibrium constant K,and `K_(2)` of two reaction are `2NH_(3)hArrN_(2)+3H_(2) ,K_(1)` `(1)/(2)N_(2)+(3)/(2)H_(2)hArrNH_(3),K_(2)` The relation `b//w` two equilibrium constant is :-A. `K_(1)=K_(2)`B. `K_(2)=(1)/(K_(1)^(2)`C. `K_(1)=(1)/(K_(2)^(2)`D. `K_(1)=(1)/(K_(2)` |
| Answer» Correct Answer - C | |