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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.
| 28001. |
The most polar bond is |
|
Answer» O-F |
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| 28002. |
The metal constituent of chlorophyll is |
|
Answer» Iron |
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| 28003. |
The most oxidised form of hydrocarbon is: |
|
Answer» `CO_2` |
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| 28004. |
The metal-carbon bond in metal carbonyls possesses |
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Answer» only `SIGMA`-character |
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| 28005. |
The metal-carbon bond in metal carbonyls prossesses : |
|
Answer» <P>only SCHARACTER |
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| 28006. |
The most nucleophilic species among the following in aprotic solvent |
| Answer» ANSWER :A | |
| 28007. |
The most malleable metal is : |
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Answer» Silver |
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| 28008. |
The metal atom and the ligands enclosed in the square brackets is called …… . |
| Answer» SOLUTION :COORDINATION SPHERE or coordination ENTITY | |
| 28009. |
The most likely protonation site in the following molecule is |
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Answer» C -1  Exceptionally STABLE carbocation (1) is formed which is `3^(@)` as well as RESONANCE STABILIZED.  So, `H^(+)` will ATTACK at C-1. |
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| 28011. |
The most likely on ideal solution is: |
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Answer» `NACL - H_(2)O` |
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| 28012. |
The most important sources of He is: |
|
Answer» Sun |
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| 28014. |
The most inert compound is : |
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Answer» IODOFORM |
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| 28015. |
The metal always found in free state is : |
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Answer» GOLD |
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| 28016. |
The most important reserves food of animals are |
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Answer» carbohydrates |
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| 28017. |
The metaboric |
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Answer» `HBO_(2)` |
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| 28018. |
The most important method of preparation of hydrocarbons of lower carbon number is: |
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Answer» Pyrolysis of higher carbon NUMBER hydrocarbons |
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| 28019. |
The mercury (I) ion is always |
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Answer» `[HG-Hg]` |
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| 28020. |
The meso tartaric acid may be represented as : |
|
Answer» `{:(""COOH),(""|),(""HO-C-H),(""|),(" "H-C-OH),(""|),(""COOH):}` |
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| 28022. |
The 'mercerised cellulose' ischemically prepared by |
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Answer» ACETYLATION |
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| 28023. |
The most important method of preparation of hydrocarbons lower carbon number is |
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Answer» PYROLYSIS of HIGHER carbon NUMBER hydrocarbons |
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| 28024. |
The mental that is extracted from sea water is : |
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Answer» Na |
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| 28025. |
The most important ingredient of dynamite is : |
|
Answer» Nitrobenzene |
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| 28026. |
The most important ingredient of dynamite is , |
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Answer» nitrobenzene |
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| 28027. |
The metal that is extracted from sea water is : |
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Answer» Na |
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| 28028. |
The most important food reserves of animals and plants are |
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Answer» Carbohydrates |
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| 28029. |
The most important ingradient of dynamite is : |
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Answer» Nitrobenzene |
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| 28030. |
The meniscus of mercury in a glass tube is : |
|
Answer» CONVEX upwards |
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| 28031. |
The most Important energy carries for the cell reaction is |
|
Answer» AMP |
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| 28032. |
The melting pt. of 13 group follows the order |
|
Answer» `BgtAlgtGagtIngtTl` |
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| 28034. |
The most important condition for resonanace to occur is that the invovled atoms in resonating structure must be coplanar or nearly coplanar for maximum delocalisation. If this condition does not fulfil, involved orbitals cannot be parallel to each other and as consequence delocalisation cannot occur. Bulky groups present on adjacent atoms inhibit the planarity of atoms involved in resonance. this pehnomenon is known as steric inhibition of resonance. Steric inhibition of resonance has profound effect on Q. Which of the following is most acidic: |
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Answer»
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| 28035. |
The number of atoms in the ring structure of pyranose is : |
|
Answer» 4 |
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| 28036. |
The most important condition for resonanace to occur is that the invovled atoms in resonating structure must be coplanar or nearly coplanar for maximum delocalisation. If this condition does not fulfil, involved orbitals cannot be parallel to each other and as consequence delocalisation cannot occur. Bulky groups present on adjacent atoms inhibit the planarity of atoms involved in resonance. this pehnomenon is known as steric inhibition of resonance. Steric inhibition of resonance has profound effect on Q. Arrange the following in the decreasing order of basicity: . |
|
Answer» IgtIIgtIIIgtIV |
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| 28037. |
The most important buffer in the blood consists of |
|
Answer» HCl and `CL^(o+)` |
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| 28038. |
The melting points RbBr is 682^(@)C, while that of NaF is 988^(@). The principal reason of this fact is : |
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Answer» The MOLAR mass of NaF is smaller than that of RbBr |
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| 28039. |
The most important active step in the development of periodic table was taken by |
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Answer» MENDELEEV |
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| 28040. |
The melting points of most of the solid substances increases with an increase of pressure acting on them However, ice melts at a temperature lower than its usual melting point, when the pressure increases. This is Because : |
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Answer» Ice is less DENSER than WATER |
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| 28041. |
The most important condition for a galvanic cell is |
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Answer» The electrolysis should not have physical contact |
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| 28042. |
The most important active step in the development of periodic table was taken by, |
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Answer» MENDELEEV |
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| 28044. |
The melting points of AlF_(3) is 104^(@) and that of SiF_(4) is -77^(@) (it sublimes) because: |
|
Answer» there is a very large difference in the ionic character of the AL-F and Si-F bonds |
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| 28045. |
The melting point of most of the solid substances increases with an increase of pressure acting on them . However , ice melts at a temperature lower than its usual melting point when the pressure increases . This is because : |
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Answer» Ice is less DENSE than water |
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| 28046. |
The melting points of most of the solid substances increase with an increase of pressure acting on them. However, ice melts at a temperature lower than its usual meiting point, when the pressure increases. This is because: |
|
Answer» ICE is less denser than water |
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| 28047. |
The melting points and solubility in water of the amino acids are generally higher than that of the corresponding haloacids. Explain. |
| Answer» Solution :The amino acids exist as Zwitter ions. Because of its dipolar SALT like character, they show strong dipole-dipole INTERACTIONS, which results in high melting points. ALSO, the amino acids INTERACT strongly with water because of salt like character and SHOWS greater water solubility. On the other hand, the haloacids do not have a salt like character and thus they show low melting points and water solubility. | |
| 28048. |
The most geometrical isomer among the following is |
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Answer»
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| 28049. |
The most favourable position (indicated by ) for an electrophilic attack is |
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Answer»
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| 28050. |
The most favourable conditon of temperature and pressure for the oxidation of SO_2 into SO_3 are : |
|
Answer» LOW remperature and HIGH PRESSURE |
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