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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your Class 11 knowledge and support exam preparation. Choose a topic below to get started.
| 601. |
How domestic waste can be used as manure |
| Answer» | |
| 602. |
Explain Friedel craft reaction.. |
| Answer» How can we send a pic<br>Friedel Crafts alkylation reaction can be explained as the alkylation of an aromatic ring using an alkyl halide in presence of a strong Lewis acid which acts as a catalyst. In the following given reaction, AlCl3\xa0is used as a catalyst and the aromatic ring taken is benzene. | |
| 603. |
3d exist but 2d not exist why? |
| Answer» Bcz the value of l must be less than the value of n and d(2) which is equal to the value of n(2). Therefore it doesn\'t exist. | |
| 604. |
What is law of mass action |
| Answer» Guldberg and Waage established a relationship between rate of chemical reaction and the concentration of the reactants or, with their partial pressure in the form of law of mass action.\xa0According to this law,“The rate at which a substance reacts is directly proportional to its active mass and rate of a chemical reaction is directly proportional to product of active masses of reactants each raised to a power equal to corresponding stoichiometric coefficient appearing in the balanced chemical equation”. | |
| 605. |
Energy level daigram for moleculer orbital |
| Answer» | |
| 606. |
How many electrons in zn (30) have n+1 value equal to 4 |
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| 607. |
Calculate the no. Of radial nodes for 4p-orbital |
| Answer» | |
| 608. |
Calculate the number of radial nodes for40p-orbital |
| Answer» | |
| 609. |
Give reason PCL5 is ionic in solid state |
| Answer» | |
| 610. |
Calculate all quantum number for 8th electron in Mg atom |
| Answer» In Mg electronic configuration1s2 2s2 2p6 3s2 8 electron in p subshellSo n=2l=1 (as p subshell)ms=-1/2 | |
| 611. |
Anode and cathode reaction that occur in dry cell |
| Answer» | |
| 612. |
What values are displayed by anita |
| Answer» | |
| 613. |
Determine oxidation No. of S in - Na2S4O6 |
| Answer» 2.5<br>Firstly I was also confused because the answer comes in decimal but this is he correct one.☺️<br>Its 2.5 | |
| 614. |
What is Huckel\'s law |
| Answer» Huckel law is used to find aromaticity of a ring compound If compound has 4n+2π electrons in ring then it will be aromatic<br>Alternate bonds should be present.<br>Planar also<br>(4n+2) sigma bond must be present | |
| 615. |
Drawback of rutherford model of an atom |
| Answer» See the NCERT book page no. 33 | |
| 616. |
Addition reaction of HBr2 to simatrical elkenes.... |
| Answer» | |
| 617. |
What is Lime cancer |
| Answer» | |
| 618. |
What are the units of surface tension |
| Answer» N/m and J/m^2<br>N/m | |
| 619. |
What is Grignred reagent?? |
| Answer» R Mg X. Jisme R koi bhi alkyl group aur X halogen<br>R-Mg-X<br>Grignard reagent is prepared by reacting alkyl(or)aryl(or)vinyl halide with magnesium in the presence of dry ether.CH3CH2Br + Mg → CH3CH2MgBrIn the preparation of grignard reagent perfectly dry ether is required because Mg is a highly reactive metal it can easily reacts with water i.e side reactions will takes place.Hence yield of the product will be reduced. | |
| 620. |
The correct quantum number of 3-p electron are |
| Answer» n=3, l=1, s= + –1/2 for each value of m, m= 1,-1,0<br>n- 3 ,l-1 | |
| 621. |
H2o2 act as oxidising agent. Write oe chemical equation |
| Answer» H2O2+Fe2+ ---------->Fe3+. +H20 | |
| 622. |
Short derivation of inert pair effect |
| Answer» The term inert pair effect is often used in relation to the increasing stability of oxidation states that are two less than the group valency for the heavier elements of groups 13, 14, 15 and 16 | |
| 623. |
Short note on green house effect |
| Answer» | |
| 624. |
VESPER Theory? |
| Answer» to explain the shape of the molecules is called vsper theory. | |
| 625. |
Define boyle temperature |
| Answer» The temperature at which a real gas obeys ideal gas law over an appreciable range of pressure. A.k.a. Boyle Point. | |
| 626. |
Uses of carbon in short |
| Answer» Thnq?<br>Acha phir, ye lo. These are the main ones;Graphite: -Electrodes in batteries (due to good conductivity).-Electrodes (due to good conductivity)-Pencil Tips-Lubricant-Dry cellsActivated Charcoal:-Absorption of poisonous gases (due to its porous nature)-Uses in ACs\' system to control odour.Carbon Black:-Black pigment in printing ink.Coal:-FuelDiamonds:-Jewellery -Drilling, cutting, polishing and grinding in industry. (Due to it\'s hard character)Used for the production of various elements in the industry.<br>11.7.4. Page 319 of NCERT TB. It\'s quite short and helpful. | |
| 627. |
bond angle |
| Answer» The angle between the orbitals containing bonding electron pairs around the central atom in a molecule or complex ion. | |
| 628. |
What is hyberdisation |
| Answer» In hybridisation two atomic orbital of same energy level fuse to form a hybrid orbital. Number of hybrid orbitals formed is equal to number of atomic orbitals used. These hybrid orbitals align themselves at those angles such that there is minimum repulsion in between them | |
| 629. |
Ye Kis year Ka sample Paper hai chemistry ka |
| Answer» | |
| 630. |
Different between position and functional isomerism with example |
| Answer» position isomers: Isomers which differ in position of functional group or multiple bond in the same carbon chain are called position isomers.for example: 2 pantanone[CH3-C(=O)-CH2-CH2-CH3] is a positional isomers of 3 pantanone[CH3-CH2-C(=O)-CH2-CH3] .functional isomers: compounda having the same molecular formula but different functional group are called functional isomers.for example: propionaldehyde [CH3-CH2-CH(=O)] and acetone [CH3-C(=O)-CH3]. Both compound have same molecular formula C3H6O but have different functional groups. | |
| 631. |
Can we get solutions for last year papers which are given here |
| Answer» Yes | |
| 632. |
What is spontaneity reaction |
| Answer» See spontaienity refers to how easily that reaction can occur. It is depended on giibs free energy it should be negative and entropy should be positive | |
| 633. |
Why BeSo4 is water soluble but BaSo4 is not |
| Answer» May be your question is incomplete | |
| 634. |
Calculate the number of atom of each type in 5.3 g sodium carbonate |
| Answer» | |
| 635. |
how will you convert benzene into p-bromonitro benzene ? |
| Answer» | |
| 636. |
Explain huckle rule ? |
| Answer» (4n+2)π electrons<br>(4n+2)pie<br>The electron present in the form of 4(n+2pie) in a ring is called huckle rule | |
| 637. |
(0.1x)^2=0.000433×10^-37 |
| Answer» Where is x<br>Find x | |
| 638. |
Hyperconjucation |
| Answer» It operates on sigma pie bond conjugation<br>Granger of sigma bond electron whichake the compounds stable | |
| 639. |
What is shilding effect |
| Answer» The no of shell between charge of nucleous rich the outermost shell produce obstracle is called shilding effect | |
| 640. |
how many electron are present in 16g of methane |
| Answer» 16g/16*6.22*10<23 =6.22*10<23 | |
| 641. |
CaoCh3-cooNa+Na.OH-------------> ? |
| Answer» CH4+Na2CO3 | |
| 642. |
How to find hybridisation |
| Answer» No. Of sigma bond + no. Of lone pair<br>Formula = 1/2 ( NO. Of outer most shell electron + (any negative charge) - (any postive charge )+(No. Of monovalent atom ))<br>By counting sigma bond | |
| 643. |
How is h2o2 is formed |
| Answer» When water reacts with oxygen2H2o + o2 - H2o2 +o2 | |
| 644. |
Difference between sigma and pie bond ? |
| Answer» Thnx<br>Sigma bond is described as head on overlapping and pie bond is described as sidewise overlapping of orbitals | |
| 645. |
What is quantum number? |
| Answer» Quantum number id defined as the those numbers which gives complete information about electron like about its shape, orientation , arrangements of electron , and location .<br>Which gives complete information about atoms ,electrons,orbits,orbitals,spin of electron<br>It gives us complete information ABOUT an electron. | |
| 646. |
How glyoxal is obtain from acetelyne? |
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| 647. |
Nomerical |
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| 648. |
How much cu can be obtain from cuso4 |
| Answer» | |
| 649. |
There will be any re appear exam in any subject in +1 class |
| Answer» | |
| 650. |
Carbon ke kitne allotrophes hote h or kaun se |
| Answer» 8 hote h a.diamondb.graphitec.lonsdaleited.C60e.C540(buckyball)f.C70g.amorphoush.buckytube<br>Nice ans.<br>Carbon has three allotropes :Diamond,Graphite and Fullerene. | |