InterviewSolution
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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.
| 101. |
Which element shows catenationA. CdB. SiC. SnD. Pb |
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Answer» Correct Answer - B |
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| 102. |
The element with highest electronegativity isA. CB. SiC. GeD. Sn |
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Answer» Correct Answer - A |
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| 103. |
Density is highest forA. SiB. GeC. SnD. Pb |
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Answer» Correct Answer - D |
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| 104. |
Black lead isA. DiamondB. GraphiteC. Gas CarbonD. Petroleum coke |
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Answer» Correct Answer - B |
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| 105. |
A fibrous mineral which can withstand red hot flames without any damage isA. TalcB. Glass woolC. AsbestosD. Soap stone. |
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Answer» Correct Answer - C |
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| 106. |
In `H_(2)SiF_(6)` the covalency of silicon isA. `+2`B. `+4`C. `+6`D. `+8` |
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Answer» Correct Answer - B |
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| 107. |
Silica is soluble inA. HClB. `HNO_(3)`C. H_(2)SO_(4)`D. `SO_(2)` |
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Answer» Correct Answer - D |
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| 108. |
Which of the following statement is correct ?A. C- F bond is stronger than Si - F because C-F bond length is shorter than that of Si-FB. C - F bond is weaker than Si - F bond because of less difference in electronegativityC. Si - F bond is stronger than C- F bond because of double bond character due to back bonding from F to Si.D. Si - F bond is stronger than C- F bond due to more difference in electronegativities. |
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Answer» Correct Answer - C |
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| 109. |
Glass is soluble inA. HFB. `H_(2)SO_(4)`C. `HClO_(4)`D. Aqua-regia |
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Answer» Correct Answer - A |
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| 110. |
Which of the following is used for the absorption of CO?A. Conc. `H_(2)SO_(3)`B. Cone. KOHC. Ammonical solution of `AgNO_(3)`D. Ammonical solution of CuCl |
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Answer» Correct Answer - D |
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| 111. |
Water glass is:A. Calcium silicateB. Sodium calcium silicateC. Sodium silicateD. Magnesium silicate |
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Answer» Correct Answer - C |
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| 112. |
The catenation tendency of `C, Si`, and `Ge` is in the order `Ge lt Si lt C`. The bond energies (in `kJ mol^(-1)`) of `C-C-, Si-Si`, and `Ge-Ge` bonds, respectively, areA. 167, 180, 348B. 180, 167, 348C. 348, 167, 180D. 348, 180, 167 |
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Answer» Correct Answer - D |
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| 113. |
1 Carrot is equal toA. 10 mg of CB. 20 mg of CC. 200 mg of CD. 1 mg of C |
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Answer» Correct Answer - C |
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| 114. |
Cerussite isA. `PbCO_(3)`B. PbSC. `PbSO_(4)`D. `SnO_(2)` |
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Answer» Correct Answer - A |
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| 115. |
Which element occurs in free state ?A. CB. SiC. GeD. Sn |
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Answer» Correct Answer - A |
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| 116. |
`SiF_(4) + H_(2)O to Aoverset(1000^(0)C)to B overset(Na_(2)CO_(3))to C` Identify B & C ?A. `H_(4) SiO_(4), Na_(2)SiO_(3)`B. `SiO_(2), Na_(2)S`C. `SiO_(2), Na_(2)CO_(3)`D. `SiO_(2), Na_(2) SiO_(3)` |
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Answer» Correct Answer - D |
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| 117. |
Number of moles of free electrons responsible for electrica conductnace of 12 g of graphite are |
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Answer» Correct Answer - 1 |
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| 118. |
How many number of free electrons present on each carbon atoms in graphiteA. zeroB. 3C. 2D. 1 |
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Answer» Correct Answer - D |
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| 119. |
In C-60 all carbon atoms areA. `sp^(2)` - Hybridised with a soccer ball shapeB. `sp^(3)` - Hybridised with a square antiprism shapeC. `sp^(2)` - Hybridised with a diamond shapeD. `sp^(2)` - Hybridised with a graphite like shape |
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Answer» Correct Answer - A |
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| 120. |
Which has highest boiling pointA. DiamondB. GraphiteC. CharcoalD. Lamp black |
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Answer» Correct Answer - A |
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| 121. |
Bond energy is highest for :A. Sn - SnB. Ge - GeC. C - CD. Si - Si |
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Answer» Correct Answer - C |
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| 122. |
Which has highest melting point ?A. SiliconB. LeadC. TinD. Diamond |
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Answer» Correct Answer - D |
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| 123. |
The bond angle in diamond isA. `104.5^(0)`B. `107^(0)`C. `120^(0)`D. `109^(0) 28^(1)` |
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Answer» Correct Answer - D |
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| 124. |
The Carbon -Carbon bond length in diamond isA. `1.2 A^(0)`B. `1.54 A^(0)`C. `1.42 A^(0)`D. `1.34 A^(0)` |
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Answer» Correct Answer - B |
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| 125. |
The type of hybridisation in graphite isA. spB. `sp^(2)`C. `sp^(3)`D. `sp^(3)d` |
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Answer» Correct Answer - B |
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| 126. |
Quartz is extensively used as a piezoelectric material, it containsA. PbB. SiC. TiD. Sn |
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Answer» Correct Answer - B |
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| 127. |
Match the oxided with solution in which they are absorbed. |
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Answer» Correct Answer - A-r, B-p, s, C-q, |
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| 128. |
Statements-I: Diamond is extremely hard and non volatile substance Statement-II: In diamond strong C-C bonding is present throughout the crystal.A. Statement-I is True, Statement-II is True : Statement-II is a correct explanation for Statement-IB. Statement-I is True, Statement-II is True : Statement-II is `NOT` a correct explanation for Statement-IC. Statement-I is True, Statement-II is False.D. Statement-I is False, Statement-II is True. |
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Answer» Correct Answer - A |
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| 129. |
Match the following : |
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Answer» Correct Answer - A-r, B-p,q,s C-p, q D-p, q |
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| 130. |
Statement-I: Carbonate and silicate are isostructural. Statement-II: Carbon and silicon have same number of valence electronsA. Statement-I is True, Statement-II is True : Statement-II is a correct explanation for Statement-IB. Statement-I is True, Statement-II is True : Statement-II is `NOT` a correct explanation for Statement-IC. Statement-I is True, Statement-II is False.D. Statement-I is False, Statement-II is True. |
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Answer» Correct Answer - D |
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| 131. |
Theconvalency of silicon in hydrofluoro silicic acid is. |
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Answer» Correct Answer - 6 |
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| 132. |
Solid silicones are stable uptoA. `100^(@)C`B. `250^(@)C`C. `300^(@)C`D. `400^(@)C` |
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Answer» Correct Answer - B |
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| 133. |
`SiO_(4)^(4-)` is the basic structural unit in the following silicatesA. QuartzB. MicaC. AsbestosD. All |
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Answer» Correct Answer - D |
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| 134. |
The correct match isA. `{:(A,B,C,D),(1,2,4,3):}`B. `{:(A,B,C,D),(5,1,2,4):}`C. `{:(A,B,C,D),(3,1,5,2):}`D. `{:(A,B,C,D),(3,2,4,1):}` |
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Answer» Correct Answer - C |
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| 135. |
The correct match isA. `{:(A,B,C,D),(1,2,3,4):}`B. `{:(A,B,C,D),(2,4,3,1):}`C. `{:(A,B,C,D),(2,1,3,4):}`D. `{:(A,B,C,D),(3,1,4,2):}` |
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Answer» Correct Answer - D |
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| 136. |
An aqueous solution of a salt (A) gives a white precipitate (B) with sodium chloride solution. The filtrate gives a black precipitate (C ) when `H_(2)S` is passed into it. Compound (B) dissolves in hot water and the solution gives a yellow precipitate (D) on treatment with sodium iodide. The compound (A) does gas on heating. Identify the compounds (A) to (D). Compound B is :A. `Pb(NO_(3))_(2)`B. `PbCl_(2)`C. PbSD. `PbI_(2)` |
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Answer» Correct Answer - B |
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| 137. |
An aqueous solution of a salt (A) gives a white precipitate (B) with sodium chloride solution. The filtrate gives a black precipitate (C ) when `H_(2)S` is passed into it. Compound (B) dissolves in hot water and the solution gives a yellow precipitate (D) on treatment with sodium iodide. The compound (A) does gas on heating. Identify the compounds (A) to (D). Compound C is :A. `Pb(NO_(3))_(2)`B. `PbCl_(2)`C. PbSD. `PbI_(2)` |
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Answer» Correct Answer - C |
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| 138. |
An aqueous solution of a salt (A) gives a white precipitate (B) with sodium chloride solution. The filtrate gives a black precipitate (C ) when `H_(2)S` is passed into it. Compound (B) dissolves in hot water and the solution gives a yellow precipitate (D) on treatment with sodium iodide. The compound (A) does gas on heating. Identify the compounds (A) to (D). Compound A is :A. `[SiO_(4)]^(4-)`B. `PbCl_(2)`C. PbSD. `PbI_(2)` |
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Answer» Correct Answer - A |
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| 139. |
An aqueous solution of a salt (A) gives a white precipitate (B) with sodium chloride solution. The filtrate gives a black precipitate (C ) when `H_(2)S` is passed into it. Compound (B) dissolves in hot water and the solution gives a yellow precipitate (D) on treatment with sodium iodide. The compound (A) does gas on heating. Identify the compounds (A) to (D). Compound D is :A. `Pb(NO_(3))_(2)`B. `PbCl_(2)`C. PbSD. `PbI_(2)` |
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Answer» Correct Answer - D |
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| 140. |
Lead shows oxidation states ofA. `+2` onlyB. `+4` onlyC. `+2` and `+4`D. `-2, +2` and `+4` |
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Answer» Correct Answer - C |
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| 141. |
Which is the hardest elementA. IronB. SiliconC. CarbonD. Aluminium |
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Answer» Correct Answer - C |
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| 142. |
Silicones areA. ToxicB. Non-ToxicC. BitterD. Sour |
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Answer» Correct Answer - B |
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| 143. |
In `H_(2)SiF_(6)` the covalency of silicon isA. 2B. 4C. 6D. 8 |
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Answer» Correct Answer - C |
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| 144. |
Silicones contain the following characteristicsA. Water repellentB. Weak Si-C bondsC. Si-Si bondD. Less stable to heat |
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Answer» Correct Answer - A |
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| 145. |
Which of the following is a conductor of electricity ?A. DiamondB. CokeC. GraphiteD. Charcoal |
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Answer» Correct Answer - C |
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| 146. |
Diamond is a non conductor of electricity becauseA. There are no free electronB. Giant polymer structureC. High refractive indexD. Its IP value is high |
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Answer» Correct Answer - A |
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| 147. |
The soldiers of Napoleon army while at Alps during freezing winter suffered a serious problem with regard to the tin buttons of their uniform. White metallic tin buttons get converted to grey poweder. This transformation is relate toA. An interaction with nitrogen of the air at very low temperaturesB. An interaction with water vapour contained in the humid air.C. A change in the partial pressure of oxygen in the airD. A change in the crystalline structure of tin |
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Answer» Correct Answer - D |
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| 148. |
Graphite is used as lubricant due toA. The slippery natureB. Its giant structureC. High refractive indexD. High IP value of carbon |
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Answer» Correct Answer - A |
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| 149. |
The one which is/are regarded as ionic carbide (s):A. `C_(4)^(-3)`B. `C^(-4)`C. `C_(2)^(-2)`D. `C_(3)^(-4)` |
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Answer» Correct Answer - B::C::D |
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| 150. |
Which property is common in diamond and graphite?A. Electrical conductivityB. Crystal structureC. Atomic weightD. Density |
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Answer» Correct Answer - C |
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