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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.
| 28201. |
The most abundant element in earth's crust is: |
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Answer» HYDROGEN |
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| 28202. |
The most abundant element in the earth's atmosphere is |
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Answer» `O_2` |
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| 28203. |
The maximum number of oxidation states which nitrogen can show in its compounds is |
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Answer» |
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| 28205. |
Themaximum numberof monochloroderivativespossiblefor 2,6 -dimethylheptane is : |
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Answer» 4 |
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| 28206. |
The maximum number of molecules will be present in |
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Answer» `16 G " of "NO_2` GAS |
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| 28207. |
The most abundant element in earth crust is: Si,aluminium,O,Fe |
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Answer» Si |
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| 28208. |
The most abundant biomol in the living w system is |
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Answer» PROTEINS |
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| 28209. |
The maximum number of molecules is present in |
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Answer» 15 L of `H_(2)` gas at STP `therefore 15 L H_(2) = (6.02 xx 10^(23))/(22.4) xx 15 = 4.03 xx 10^(23)` molecules `5 L N_(2) = (6.02 xx 10^(23))/22.4 xx 5 = 1.344 xx 10^(23)` molecules 2g `H_(2) = 6.02 xx 10^(23)` molecules `therefore 0.5 g H_(2) = (6.02 xx 10^(23))/2 xx 0.5` molecules `=1.505 xx 10^(23)` molecules 32 g of `O_(2) = 6.02 xx 10^(23)` molecules `therefore 10 g O_(2) = (6.02 xx 10^(23))/32 xx 10` molecules `=1.88 xx 10^(23)` molecules. |
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| 28210. |
The monovalent RO group is called |
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Answer» ALKYL group |
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| 28212. |
The maximum number of molecules is present in: |
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Answer» 15L of `H_(2)` gas at STP Number of molecules in 5L `N_(2)=(5)/(22.4)xxN=0.223N` Number of molecules in 0.5 g `H_(2)=(0.5)/(2)xxN=0.25N` Number of molecuels in `10g O_(2)=(10)/(32)xxN=0.312N` |
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| 28213. |
The more electronegative element is : |
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Answer» F |
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| 28214. |
The more electro positive element has |
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Answer» POSITIVE reduction POTENTIAL |
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| 28215. |
The monomers of biodegradable polymer , nylon 2-nylon 6 are |
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Answer» glycine + adipic ACID |
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| 28216. |
The maximum number of isomers (including steroisomres) that are possible on monochlorination of the following compound. CH_(3)CH_(2)-underset(H)underset(|)overset(CH_(3))overset(|)(C)-CH_(2)CH_(3), is: |
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Answer» 2 |
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| 28217. |
The more activeness of fluorine is due to |
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Answer» F-F bond has less energy |
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| 28218. |
The monomers used in the production of nylon-6,6 are |
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Answer» HEXAMETHYLENE DIAMINE and ETHYLENE GLYCOL |
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| 28219. |
Which of the following has maximum number of molecules ? |
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Answer» 5 L of `N_2`GAS at STP |
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| 28220. |
The monosaccharide units in oligosaccharides and polysaccharides are connected through ..........linkages. |
| Answer» SOLUTION :GLYCOSIDIC | |
| 28221. |
The monomers used in the production of nylon-66 are |
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Answer» Hexamethyl DIAMINE and ETHYLENE glycol |
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| 28222. |
The monomers used in the preparation of nylon 6, 6 are________and___________. |
| Answer» SOLUTION :HEXAMETHYLENE DIAMINE, ADIPIC ACID | |
| 28223. |
The maximum possible number of hydrogen bonds a water molecule can form is : |
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Answer» 3 |
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| 28224. |
The monomers used in preparation of dexton are |
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Answer» lactic acid and glycollic acid |
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| 28225. |
The maximum number of hydrogen bonds in which water molecule can participate is: |
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Answer» 1 |
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| 28226. |
The monomers used in addition polymerisation through free radical should be every pure because |
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Answer» the TRACES of impurities act like inhibitors resulting in SHORT chain polymers |
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| 28227. |
The monomers present in glyptal are |
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Answer» ETHYLENE glycol, caproic acid |
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| 28228. |
The maximum number of elements in third period is |
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Answer» 8 |
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| 28230. |
The maximum number of electrons theoritically possible for seventh principal shell is |
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Answer» 49 |
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| 28231. |
The monomer used to produce orlon is |
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Answer» `CH_2=CHF` |
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| 28232. |
The maximum number of electrons in an atom with quantum number n=3, l=2 is |
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Answer» 2 |
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| 28233. |
The monomer used in the preparation of neoprene is |
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Answer» NEOPENTYL CHLORIDE |
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| 28234. |
The monomer units of starch are |
| Answer» Answer :A | |
| 28235. |
The maximum number of electrons in a sub-shellis given by the expression: |
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Answer» `4l-2` |
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| 28236. |
The monomer used in Novolac, a polymer used in paints |
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Answer» MELAMINE and FORMALDEHYDE |
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| 28237. |
The monomers used in Novolac, a polymer used in paints, |
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Answer» BUTADIENE and styrene  
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| 28238. |
The maximum number of electrons in a sub shell having the same values of spin quantum umber is given by |
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Answer» `L+2` |
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| 28239. |
The monomer used in preparing nylon 6 is |
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Answer» BUTADIENE + styrene |
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| 28240. |
The monomer units in strach are |
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Answer» `alpha`-GLUCOSE |
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| 28241. |
The maximum number of electrons in a sub shell having the same value of spinquantum number is given by |
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Answer» `L^(2)` |
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| 28242. |
The monomer units of silicons a water repellant,acid resistant and heat resistants polymer is: |
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Answer» SI |
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| 28243. |
The monomer units of silicone, a water repellant, acid resistant and heat resistant polymer is: |
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Answer» `Si` |
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| 28244. |
The monomer units of PTFE are: |
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Answer» `Cl_2CH-CH_3` |
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| 28245. |
The maximum number of electrons in a sub-shell for which l=3, is |
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Answer» 4 |
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| 28246. |
The monomer unit of starch are |
| Answer» Answer :A | |
| 28247. |
The monomer unit of polyvinyl chloride has theformula |
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Answer» `CH_3 - CH_2Cl` |
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| 28248. |
The maximum number of covalent bonds formed by nitrogen is 4. |
| Answer» Solution :Nitrogen has three UNPAIRED ELECTRONS and one lone pair of electrons in the valence SHELL. Therefore, nitrogen can form three normal covalent bonds and one coordinate bond. | |
| 28249. |
The monomer that undergo radicalpolymerisation most easily is : |
| Answer» Solution :N//A | |
| 28250. |
The maximum number of atoms that may lie in the same plane in (CH_(3))_(2)C=SF_(2)(CH_(3))(2) is …… |
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Answer» |
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