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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.
4801. |
Example for heterocyclic |
Answer» | |
4802. |
Because I want a easy way, chemistry is tough for me when I tried to understand it i feel bored. |
Answer» Ek baar intrest lekar padho , socho , usse assli duniya par apply karo har cheez main use dhundho and ache se padho Physics wallah ki video dekho Apne teacher se savaal karo<br>What is JMD?<br>Easy way is that you learn from JMD or 333 Learn only important questions | |
4803. |
Exmples on oxidation number |
Answer» Thanks for it<br>Send me more and more ok<br>Mno4 o is in oxide form so it will have (-2) valency .The whole charge of the compound is 0 Now Let oxidation no. Of mn be x then x+(4×(-2))=0x-8= 0x= +8 Hence the oxidation no. Of mn is +8 | |
4804. |
Magnesium and ammonium shows almost some properties |
Answer» | |
4805. |
How to balance a chemical reaction by oxidation number method |
Answer» | |
4806. |
What is gibb,s law. |
Answer» Not gibbs law it is Gibbs free energy which is available for useful work | |
4807. |
What is the syllabus of second unit test??? |
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4808. |
What whold happen if no salt bringe is used in znso4 -cuso4 electrochemical cell |
Answer» If the salt bridge willnot in use then the transfer of ions will not possible<br>Magnesium and Aluminium some properties explain | |
4809. |
For the reaction2A(g)+B(g)-2D(g)de |
Answer» | |
4810. |
Please give me all formulas of chapter 6 thermodynamics........ |
Answer» You should read the summary given in the session and It will make you more clear with the help of theroy and approaching formulas and then, write them by finding and reading from the textbook yourself. Hope it will helpful?<br>Hhs | |
4811. |
Structure of borane |
Answer» | |
4812. |
Define Redox reaction ? |
Answer» Those chemical reactions in which both oxidation and reduction takes place simultaneously are called tedox reactions | |
4813. |
Balance the given equation by half section method I - + io3 - + h + 10 + 22 + H2O |
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4814. |
Why VSEPR was introduced |
Answer» To predict shape | |
4815. |
Can u explain me plz what is kernel ? |
Answer» | |
4816. |
Calculate the solubility of Baso4 in 0.05M in Bacl2 solution.ksp ofBaso4 is 1.1×10‐⁸ |
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4817. |
I want notes of hybridisation and structures, overlaping of orbitals, |
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4818. |
Defined as Gibb\'s Free Energy. |
Answer» Simply gibbs energy or gibbs free energy is a useful energy<br>Note. : acc to iupac system, for gibbs free energy now the term gibbs energy is used. The gibbs free energy and gibbs energy have same meaning<br>The two tendencies is expressed by another Thermodynamic function, which is more convenient to use is called Gibbs free energy | |
4819. |
Numericals of chapter hydrogrn |
Answer» Yes | |
4820. |
Conjucate acid for Br- |
Answer» The formula for conjugate acid of br- is 2 | |
4821. |
Difference between electrochemical cell and electrolytic cell |
Answer» <th scope="col" style="text-align:center">\t\t\t(1) It is a device to convert chemical energy into electrical energy.(1) It is a device to convert electrical energy into chemical energy.(2) It is based upon the redox reaction which is spontaneous.(2) The redox reaction is non-spontaneous and takes place only when electric energy is supplied.(3) To set up this cell, a salt bridge or porous pot is used.(3) No salt bridge is used in this case.\t | |
4822. |
Who discovered the charge of electron |
Answer» Mullikan | |
4823. |
Titration experiments of C2H2O4.2H2O |
Answer» | |
4824. |
The properties of liquid state |
Answer» Properties of liquids are they are not rigid They can\'t compressedThey can acquire the shape of vessel in which they kept Theh have high intermolecular space btw them They show viscosityThey have definite volumeThey have high density then gases<br>The properties of liquids are as follows:-1. Liquids cannot be compressed easily.2. Liquids are not rigid in nature.3. Liquids have higher intermolecular spaces between them.4. | |
4825. |
Balancing equation based on the acidity nd bacicity |
Answer» By oxidation method we should find ox no of elements except ox and hydrogen then we have to balance ox no and then you can balance charge by adding h+ if acidic or by adding oh- | |
4826. |
Describe the characteristics of S and P block element chemical and physical properties |
Answer» The physical properties of S block are first they are highly electropositive in nature second they are most metallic in nature they are less electronegative in nature their size increases from top to bottom as their shells are increased | |
4827. |
BF3 don\'t have a proton but acts as an acid.Why? |
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4828. |
Which of the following has highest bond order n2 n2 plus n2 minus |
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4829. |
What are resonance structures?why is it necessary? |
Answer» Resonating structures hypothetical structures in which comparable energies size and compound with same properties takes part in resonance<br>If you don\'t know answer don\'t do this<br>Jjhhjaga | |
4830. |
What is the meant by standard ethalpy of atomisation |
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4831. |
Determine the empirical formula of an oxide of iron,which has 69.9% iron and 30.1% dioxygen by mass. |
Answer» | |
4832. |
What is Rf value? Why is it less than 1 |
Answer» Rf values are always less than 1. An Rf value of 1 or too close to it means that the spot and the solvent front travel close together and is therefore unreliable. This happens when the eluting solvent is too polar for the sample. | |
4833. |
IUPAC name for 1. CICH2CH=CHCH2I2. CH3-CH(OH)CH(CH3)CONH33.(CH3) 3CCl4.neupentane |
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4834. |
Name and structure of the product formed when C6H5COONa is treated with Soda lime |
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4835. |
Why mountainous have to carry oxygen cylender with them |
Answer» Because on height the concentration of oxygen decreases.<br>From which kv..<br>R u from kv....<br>Hi there, they carry it cause when we go up from the earth surface the presence of oxygen decreases therefore they got to carry it? | |
4836. |
Identify the species undergoing oxidation and reduction in overall reaction of photosynthesis |
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4837. |
Oxidation half reaction of i- change into i2 |
Answer» | |
4838. |
Full form of azt |
Answer» Azidothymidine | |
4839. |
Lewis structure |
Answer» | |
4840. |
What are the uses of fullerene |
Answer» Fullerene is used as an anti-aging and anti-damage agent in the cosmetic sector. Fullerenes are used as antiviral agents. This use is provided by its unique molecular structure, antioxidant effect and biological compatibility. | |
4841. |
Heat energy is exchanged when system and surrounding are in thermal contact.why? |
Answer» Thermodynamic system is said to be in thermal contact with another system when it can exchange energy through heat. The thermal isolation is an idealisation as real systems are always in thermal contact with their environment to some related extent.When two solid bodies are in contact, a resistance to heat transfer exists between the bodies. The study of heat conduction between such bodies is called thermal contact conductance.<br>I do not know | |
4842. |
What is quantum number explain briefly |
Answer» Accordingly, quantum numbers are a set of values that describes the state of an electron including its distance from the nucleus, the orientation and type of orbital and its spin. | |
4843. |
Difference between valency and oxidation |
Answer» 1.\xa0Valency is the maximum no. of electrons which an atom can lose or gain while oxidation no. is the actual no. of electrons which the element lose or gain to form a molecule.2. Valency is the property of an isolated atom while oxidation state is calculated for an atom is present in a molecule i.e, in a bonded state.3. Valency of an element remains the same while its oxidation state may be different in different molecules. | |
4844. |
What is molecular maa |
Answer» The molecular mass of a substance is the number of times the molecule of the substance is heavier than one-twelth the mass of an atom of carbon -12. Or, the molecular mass is equal to the sum of its atomic masses of all the atoms present in one molecule of a substance. For eg: Water (H2O)Atomic mass of H= 1 unitAtomic mass of O =16 unitsThe molecular mass of water = 2 × atomic mass of H+1 × atomic mass of O= 2 × 1 + 16 × 1= 18 units | |
4845. |
What is Bond Energy |
Answer» Also known as bond disassociation enthalpy i.e ,Energy required to break bond<br>Bond energy can be defined as the energy which is required to break 1mole of bond.<br>It is the the energy required to break 1 mole of bond<br>It is the energy required to break a bond | |
4846. |
What are ideal gas properties and equation? |
Answer» PV = nRT | |
4847. |
Which is more concentrated out of 1 molar and 1 molal |
Answer» 1 molar is more concentrated as it is in liquid state | |
4848. |
Differentiate between hydrolysis and hydration?????? |
Answer» Hmm... Jaise aap khudh hoge vaisa hi answer doge<br>Oyeeee<br>? | |
4849. |
Do write the anomalous behaviour of lithium |
Answer» Tq yogi bro<br>The anomalous behaviour of lithium is as follows:\tLithium is harder than other metals of the respective group.\tIt has higher Melting and boiling point than other metals\tIt is least reactive.\tIt is strongestreducing agent.\tUnlike other metals LiCl is deliquescent and exist as LiCl.2H2 | |
4850. |
What is the effect of temperature on the solubility product (Ksp) of the sparingly soluble salt |
Answer» | |