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.
| 50901. |
IN WHICH MOLECULE THE INTERAVTION OF HYDROGEN BOND IS PRESENT |
| Answer» TION:eiieisiejjshshsh hahshhshshhwhshhw | |
| 50902. |
Name the most reactive metal. |
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Answer» Caesium, the most reactive metal in the periodic table, REACTS EXTREMELY VIOLENTLY – hence why it can't be demonstrated in a classroom! This can be compared to other common metals, such as iron and copper, which produce no reaction when DROPPED into water.Explanation:xXitzGucciboyXx |
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| 50903. |
How can we seperate a mixture of SALT and CAMPHOR ❓️ |
| Answer» TION is the process which is used to separate the MIXTURE of camphor and salt. Camphor gets directly converted to its GASEOUS STATE, LEAVING the salt behind. | |
| 50904. |
When we study Steps in an anlysis, performe the measurment means....Statistic measurmesO calibrationO accuracy InformationNone of these |
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Answer» by the way you can see the attached file is scanned image in PDF FORMAT to the kya hua TUMKO to aana hi tha GROUP se KHA lo jaldi se kha ho to phone you very happy |
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| 50906. |
कोल्बे विधि का सचित्र वर्णन कीजिए |
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Answer» यह लेख एक आधार है। जानकारी जोड़कर इसे बढ़ाने में विकिपीडिया की मदद करें।रसायन विज्ञान में किसी अभिक्रिया में होने वाली विभिन्न मूलभूत अभिक्रियाओं का क्रमबद्ध विवरण अभिक्रिया क्रिया-विधि (REACTION MECHANISM) कहलाता है।अधिकांश रासायनिक अभिक्रियाओं में सीधे तौर पर केवल सकल (नेट) रासायनिक परिवर्तन ही प्रेक्षित किया जा सकता है। किन्तु ऐसे प्रयोग डिजाइन किये जा सकते हैं जो उन 'नेट अभिक्रियाओं' के संभावित चरणों का संकेत देते हैं। हाल के वर्षों में 'एलेक्ट्रोस्प्रे आयोनाइजेशन मास स्पेक्ट्रोस्कोपी' का उपयोग करके बहुत सी रासायनिक अभिक्रियाओं की क्रियाविधियों की जानकारी प्राप्त की गयी है। |
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| 50907. |
The theoretical value of volume of Cl2 gas obtained from melted NaCl in 50.139 litre. If 45.125 litre is obtained experimentally what will be the efficiency of the cell ? (a) 90% (b) 88% (c) 79% (d) 93% |
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| 50908. |
What is the calculated energy (in kJ) of light emitted in the hydrogen spectrum, when an electron falls from the 4th energy level to the 3rd energy level? |
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Answer» The EXPRESSION for the wavelength of RADIATION is, λ1 =R( n 12 1 − n 22 1 )Substitute values in the above expression,λ1 =109677×( 2 2 1 − 4 2 1 )=109677×( 41 − 161 )=109677×( 6412 )λ=4.86×10 −5 cm=486×10 −9 m=486nm.The LINE belongs to bluish green colour. |
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| 50909. |
The Zn product obtained by calculation is 2.2383 joule. If efficiency of cell is 90% how much product will be obtained experimentally ? (a) 2.014 mole (b) 2.14 mole (c) 2.214 mole (d) 2.04 mol |
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Answer» I don't UNDERSTAND your QUESTION |
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| 50910. |
What is the coordination number for scp is 2d packing |
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Answer» #ScamHoGaya |
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| 50911. |
An excess of aqueous silver nitrate is added to aqueous barium chloride and precipitate is removed by filtration, what are main ions in the filtrate. (A) Ag+ and NO, only (B) Ag+, Ba?' and NO; (C) Baº and NO, only ,NO; and CI (B) Baº. Molarits of |
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Answer» A charged BODY ATTRACTS a neutral body or a body of an opposite charge. A charged body REPELS a body of the same charge. |
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| 50912. |
What happens when the temperature of a solid reaches it melting point? |
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Answer» When a solid is heated the particles gain ENERGY and start to VIBRATE faster and faster. Although the particles are still LOOSELY connected they are able to MOVE around. At this point the solid is melting to form a liquid. The particles in the liquid are the same as in the solid but they have more energy. |
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| 50913. |
The unit of K for the reaction pcl3- pcl3cl2 is |
| Answer» MOL-1 DM3 d. mol dm3 EXPLANATION: | |
| 50914. |
Bronze is made up of zinc tin and copper in the ratio 1:4:25 respectively. A bronze cup contains 120g of tin . fin the required quantities of the metals. |
| Answer» 4G , 16G and 100G is the ANSWER | |
| 50915. |
The structure of 1,2,3-trichloro-1,2-dimethyl propane |
| Answer» CL I. I. I CH2-CH2- CH2 I. I CH3. CH3 | |
| 50916. |
Wool is come from which animal? |
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Answer» sheepsheepWool, ANIMAL fibre FORMING the protective covering, or fleece, of SHEEP or of other hairy MAMMALS, such as goats and CAMELS. |
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| 50917. |
What are problems of Nelson cell and what are their solution |
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Answer» Problems Solution:Its keeps the TWO SOLUTIONS SEPARATED and migrate Na+ ions towards the chloride. The second problem is solve by keeping the brine level slightly higher in anode compartment . So, flow of liquid continues towards the cathode and OH- ions can not REACT the anode. |
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| 50918. |
A 0:005 M aqueous solution of a certain substance absorbs 15% of the incident light in a Lambert-Beer law cell of path length 2 cm. Calculate the concentration required for 90% absorption of the incident light. |
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Answer» The ABSORBANCE has a logarithmic RELATIONSHIP to the transmittance; with an absorbance of 0 corresponding to a transmittance of 100% and an absorbance of 1 corresponding to 10% transmittance.... |
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| 50919. |
State for the displacement whether the following situation is true or false. (a) It cannot be zero. (b) Its value is greater than the distance covered by the object. |
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Answer» Explanation:33eyfgivjl.bhdyrsbk |
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| 50920. |
Formula for strength of KMno4 solution??? |
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Answer» formula for strength of KMno4 solution???Explanation:To DETERMINE the strength of a given potassium PERMANGANATE solution against a standard FERROUS AMMONIUM sulfate (Mohr's salt) solution.The strength of and molarity of given KMnO4 solution is found out as 2/y X 31.6 g/l and N/5 moles/liter, respectively. |
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| 50921. |
Please help with this. |
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Answer» If no box REMAINS empty, then we can have (1,1,3) or (1,2,2) distribution pattern. When boxes are kept in a ROW, they will treated as different. In this case the number of WAYS will be 5−1C3−1=4C2=6.Explanation: |
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| 50922. |
Calculate mass percentage of copper in copper sulphate hemihydrate- CuSo4.5H2O |
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Answer» W.K.T molar mass of Cuso4.5H2O = 159.609 + 90 = ~250. Mass of water of crystallization = 5 * 18 = 90. Percentage = 90/250 * 100= 36%.Actually, it refers to the water that is FOUND in the crystalline framework and includes metal complex or salt. This have been found directly bonded to the metal cation. |
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| 50923. |
Do electrons are removed in the same order as they are filled? |
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Answer» no, we should not REMOVE |
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| 50924. |
Find the ratio of energies of electron of hydrogen atom in the 4th and 3rd Orbit |
| Answer» 4TH and 3RD is 0 because it's 1 | |
| 50925. |
Electronic distribution of 30 element (k l m n shell) |
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Answer» N notations indicate the TOTAL number of ELECTRONS with each principal quantum number which is n. The neutral chlorine ATOM has an ATOMIC number of 17. It contains the 17 electrons which are DISTRIBUTED in its atomic shells. |
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| 50926. |
Which of the following substances contain 1 mole of stated particles |
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Answer» A substance is simply a pure form of matter. In other words, a substance is matter than contains only one type of atom or molecule. ... Elements are the simplest form of matter, which means they cannot be broken down into SMALLER components physically or chemically.Explanation:Examples of pure substances include tin, sulfur, diamond, water, pure sugar (sucrose), table salt (sodium CHLORIDE) and baking soda (sodium BICARBONATE). Crystals, in general, are pure substances. Tin, sulfur, and diamond are examples of pure substances that are CHEMICAL elements. |
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| 50928. |
How much heat energy has to be supplied to change 1 kg of ice at 0 degree Celsius are you present swadha |
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Answer» for example, when I MELTING 1kg of ice (at 0°C under a wide range of PRESSURE), 333.55 KILO joules of ENERGY is abosorbed with no temperature change. |
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| 50929. |
0.5 mole of nitrogen gas and 0.5 mole of carbon monoxide at stp what si same?? |
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Answer» VolumeWill be same |
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| 50930. |
Give IUPAC name of CH3COCH₂CH(OH)CH3 |
| Answer» IUPAC NAME of the COMPOUND will be METHOXYETHANE | |
| 50931. |
Write two advantages and two disadvantage of synthetic fibre. answer it |
| Answer» MAKE me as a BRAINLIST .. | |
| 50932. |
What is reduction reaction class 10 |
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Answer» A REACTION in which oxygen gets REDUCED and HYDROGEN is GAINED |
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| 50933. |
How many grams of oxygen will be required to react completely with 27 g of al |
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Answer» 24 G oxyggem reqiured to recap COMPLETELY with 27 g al |
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| 50934. |
Calculate the mass of photon having wavelength 3.6 A^0 [1 A^0 = 10^(-10)m] |
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Answer» `lamda=3.6 A = 3.6 xx10^(-10)m`VELOCITY of photon = velocity of light`H/(lamdav)=(6.626xx10^(-34)Js)/((3.6xx10^(-10)m)(3XX10^(8)MS^(-1)))``6.135xx10^(-29) kg` |
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| 50935. |
What do you mean by crystallization ? |
| Answer» CRYSTALLIZATION, or crystallisation, is the process of atoms or molecules ARRANGING into a well-defined, rigid crystal lattice in ORDER to MINIMIZE their energetic state. The smallest entity of crystal lattice is called a unit cell, which can accept atoms or molecules to GROW a macroscopic crystal. | |
| 50936. |
Which equation shows the proper setup to find the volume of a 0.250 M CaCl2 solution that contains 39.5 g of CaCl2? mc001-1.jpg mc001-2.jpg mc001-3.jpg |
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Answer» We know that molarity is the no of moles per UNIT volume.From following relation we can calculate AMOUNT of cacl2 REQUIRED (X)to prepare 0.25 M cacl2 250 ml SOLUTION.1000ml—1M—111g cacl2250ml —0.25—X g cacl2So that from above1000ml ×1M×X g= 250ml×0.25M×111gX=[250ml×0.25M×111g]÷[1000ml×1M]X=6.9375 g of cacl2Hence by dissolving 6.9375 g of cacl2 in 250 ml volumetric flask with distilled water then you will get 0.25 M cacl2 solution. |
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| 50937. |
Why two molecular orbitals are formed by combination of two atomic orbitals ? Why not one ? |
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Answer» responding orbitals of both ATOMS should have the same symmetric orientation AROUND the molecular axis. Although all the THREE orbitals of 2p have the same energy, 2pz ORBITAL of one atom can only combine with the 2pz orbital, not 2PX or 2py, of the other atom. |
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| 50938. |
Magnesium and chloride criss cross of symbols |
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Answer» apply the criss-cross METHOD for this compound as, THEREFORE, the CHEMICAL FORMULA of magnesium chloride is CU(NO3)2. |
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| 50939. |
Obtain slope m and intercept c for the strength line 3y-2x=5 |
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| 50940. |
Which nitrogenous fertilizer easily taken by plants |
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Answer» Both NO3-N and NH4-N are the forms of N that are taken by plants. Several literatures SHOW that NO3-N is the most available FORM of N.Explanation:Nitrate is the form of nitrogen most used by plants for growth and development. Nitrate is the form that can most easily be lost to groundwater. Ammonium taken in by plants is used directly in proteins. This form is not lost as easily from the soil.Plants ABSORB ammonium and nitrate during the assimilation process, after which they are converted into nitrogen-containing organic molecules, such as amino ACIDS and DNA.PLS MARK AS BRAINLIEST |
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| 50941. |
D-d sankramad se ap kya samjhte ho |
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| 50942. |
Air inside a balloon is at a pressure of 2 Pascals. If the volume of the balloon is shrunk into half its original size keeping the temperature constant what is the pressure of the air inside now? |
| Answer» MASS of AIR does not REMAIN CONSTANT | |
| 50943. |
). Which can be used for carring out electrophilic aromatic substitution? (a) Water (b) Liq N13 Oleum (d) Hydride ion |
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Answer» tion:22-4A Scope and MechanismIn this section we shall be mainly interested in the reactions of arenes that involve attack on the carbon ATOMS of the aromatic ring. We shall not elaborate now on the reactions of substituent groups around the ring.The principal types of reactions INVOLVING aromatic rings are substitution, addition, and oxidation. Of these, the most COMMON type is electrophilic substitution. A summary of the more important substitution reactions of benzene is given in Figure 22-7. Many of the reagents used to achieve these substitutions will be familiar to you in connection with electrophilic addition reactions to alkenes (e.g., Cl2 , Br2 , H2SO4 , and HOCl ; Section 10-3). Electrophilic addition to alkenes and electrophilic aromatic substitution are both polar, stepwise processes, and the key step for each is attack of an electrophile at carbon to form a cationic intermediate. |
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| 50944. |
Define Malleability,Ductility,Sonorous metal and non metal ? |
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Answer» If malleable, a MATERIAL may be flattened into thin sheets by hammering or ROLLING. Ductility is the physical property of a material ASSOCIATED with the ABILITY to be hammered thin or stretched into wire without breaking. A ductile substance can be drawn into a wire. ... NONMETALS are not generally ductile |
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| 50945. |
imperative sentences traffic police catching a boy for speeding on his motorbike and jumping the traffic signal |
| Answer» DONT KNOW BYEExplanation: | |
| 50946. |
Identify oxidising and reducing agent answer fast plz |
| Answer» 1 - CUO, h2-h2s, cl3-cuso4,zn4-4nh3,5q25-h20,F2 | |
| 50947. |
An x-particle is positively charged true or false |
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Answer» I DONT KNOW EXPLANATION:what is x-particle MEANING |
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| 50948. |
नलिखित संरचनाओं का E-Z नामकरण likhiye CH3-C=C-H2-C=C-CH2CH4 |
| Answer» | |
| 50949. |
calculate the wavelength of spectral line obtained in the spectrum og Li^(2+) in the lyman spectrum from n=3 |
| Answer» TRANSITION occurs in between the levels n 1 and n 2 . Thus, if then GIVENN 1 +n 2 =4n 2 −n 1 =2 ∴n 2 =3,n 1 =1Therefore, λ1 =R H ×Z 2 [ 1 2 1 − 3 2 1 ] (∵Z=3 for LI)=109678×3 2 ×[8/9]∴λ=1.14×10 −6 cm | |
| 50950. |
Differenciate between Oxidation and Reduction. |
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Answer» ✨ Oxidation is a reaction that removes an electron from a substance; REDUCTION is a reaction that adds ELECTRONS to a substance. ✨ |
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