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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.
| 1501. |
The particles of matter are very very small yes or no |
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Answer» Answer: Explain that all matter on Earth exists in the form of a solid, liquid, or GAS, and that SOLIDS, liquids, and GASES are all made of extremely tiny particles CALLED atoms and molecules. Tell students that an atom is the smallest building block of matter and a molecule is two or more atoms CONNECTED together. |
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| 1502. |
The particles of matter attack one another yes or no |
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| 1503. |
What is the action of the following ethyl mithyl ether(a) cold HI (b) dil H2 So4 under pressure |
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| 1504. |
What is redax reaction? |
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Answer» Answer: REDOX is a TYPE of chemical REACTION in which the oxidation states of atoms are changed. Redox reactions are characterized by the actual or formal TRANSFER of electrons between chemical species, most often with one species UNDERGOING oxidation while another species undergoes reduction. |
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| 1505. |
To calculate the number of protons I look at the _______atomic_______ number. |
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Answer» Answer: To CALCULATE the NUMBER of PROTONS I look at the _______atomic_______ number. |
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| 1506. |
With the help of a neat labelled diagram show the effect of temperature on solid and liquid. |
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Answer» Answer: At LOW temperatures (below 0°C), it is a solid. When at “normal” temperatures (between 0°C and 100°C), it is a LIQUID. While at temperatures above 100°C, water is a GAS (STEAM). The STATE the water is in depends upon the temperature. thanks for 2 thanks |
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| 1507. |
What happens when a catalyst is added to a system at equilibrium? *(a) The reaction follows an alternative pathway of lower activation energy.(b) The heat of reaction decreases.(c) The potential energy of the reactants decreases.(d) The potential energy of the products decreases. |
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Answer» Answer: The addition of a CATALYST to a reaction at equilibrium makes the reaction to follow an ALTERNATIVE pathway that have a LOWER activation energy. The catalyst makes the reaction to follow that pathway in which the energy barrier is less. DUE to this, the reaction occurs at a faster rate. Hence, the correct option is (a). Explanation: hope it HELPS you please mark me as brainlist |
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| 1508. |
.calculate the equivalent mass of the following. i)H2SO4 ii)KOH iii)NaOH iv)Ca(OH)2 v)HCl vi)KMnO4 vii)K2Cr2O7 |
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Answer» I HOPE you UNDERSTAND that |
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| 1509. |
A pencil led contains 1g of graphite find out how many atom of carbon are present in that ? |
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Answer» Answer: The units for molar mass are grams PER mole or g/mol. 1.00mol of carbon-12 atoms has a mass of 12.0g and CONTAINS 6.022×1023 atoms. 1.00 mole of any element has a mass NUMERICALLY equal to its atomic mass in grams and contains 6.022×1023 particles MARK ME AS BRAINLIST HOPE IT WILL HELP YOU |
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| 1510. |
The potential Energy of an electron in hydrogen atom is -6.8eV. Indicate in which excited state the elecron is present? |
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Answer» Answer: 1st excited state means in the second shell of atom Explanation: potential energy of a hydrogen atom is -27.2/n^2 eV & it is GIVEN that it is - 6.8eV , on EQUATING these two we will GET " n " as 2 |
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| 1511. |
Write a balanced chemical equation with state symbols for the below reaction:- Zinc granules are added to sulphuric acid, there occurs a change in the state of zinc granules and they are converted to zinc sulphate and hydrogen gas is evolved. |
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Answer» Element. Reactant. product Hydrogen. 2. 2 sulphur. 1. 1 oxygen. 4. 4 zinc. 1. 1 |
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| 1512. |
Why born model is considered to be the basic model for ion solvent interactions? |
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Answer» =>By considering a charged sphere equivalent to an ion, the Born model is assuming that it is only the charge on the ion (or charged sphere) that is responsible for ion-SOLVENT interactions. The interactions between the solvent and the ion are considered to be solely ELECTROSTATIC in origin. |
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| 1513. |
The square of it's period of revolution around the Sun is directly proportional to the cube of the mean distance of a planet from the Sun can be written mathematically as to |
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Answer» Answer: hi Explanation: Kepler's third law : The SQUARE of its PERIOD of revolution around the Sun is directly PROPORTIONAL to the CUBE of the MEAN distance of a planet from the Sun. |
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| 1514. |
What is the method find electronic cofigration |
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Answer» u should REMEMBER the ions of the elements Explanation: |
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| 1515. |
List some anime to watch in fantasy romance comedy in English dub example (false love) anime |
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Answer» Answer: 5 CENTIMETERS Per Second. 5 Centimeters Per Second is one of the BEST dubbed romance anime. ... The Garden of Words. Takao Akizuki wants to be a shoemaker. ... Your NAME. ... Toradora. ... Spice & Wolf. ... Maid-Sama. ... Clannad. ... PRINCESS Tutu. Explanation: PLEASE mark as brainliest n thank me |
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| 1516. |
Conventionally, the electrode potential refers to. *(a) Oxidation(b) Reduction(c) Neutralization(d) Charge potential |
Answer» (d) CHARGE potential |
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| 1517. |
Prove your answer too how is possible |
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Answer» Answer: 4TH Option 2-METHYL pent-2-ene Explanation: The LONGEST CHAIN is 5 carbons long. The lowest number that can be given to the methyl GROUP and the double bond is 2 The Double bond is at 2nd carbon. Double bond is given higher priority. Substituent Methyl group is at 2nd carbon. |
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| 1518. |
Explain the following(a) hydrogen spectrum(b) emission spectrum(c)bhors model of atom(d)photo electric effect |
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Answer» a is the RIGHT answer tquuuuuuuuuuuuu |
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| 1519. |
D लोक सभा के सदस्यों के लिए क्या योग्यताहैं?5) |
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Answer» ●संसदीय सदस्यता के लिए योग्यता - संसद सदस्य के रूप में चुने जाने के लिए एक व्यक्ति को भारत का नागरिक होना चाहिए और राज्य सभा में चुने जाने के लिए उसकी आयु कम से कम 30 वर्ष और लोक सभा के मामले में कम से कम 25 वर्ष होनी चाहिए। अतिरिक्त योग्यताएं कानून द्वारा संसद निर्धारित किए जाएं। |
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| 1520. |
Value of Henry law constant? * |
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Answer» Answer: Henry's law constant is very MUCH important in environmental CHEMISTRY, atmospheric chemistry, waste water treatment. They are needed since solubility affects volatilizations of toxic compounds into the air. Hope it HELPS you! |
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| 1521. |
"Which of the following mixture does not show positive deviation from Raoult’s law?(a) Acetone-chloroform(b) Benzene-Acetone(c) Benzene-Ethanol(d) Benzene-carbon tetrachloride |
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| 1522. |
examples of steam reacting with metals(other than magnesium and please also give structural formula and name) |
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| 1523. |
What is stomata? tell me directly shivangi dinow I am also serious |
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Answer» Stomata are TINY OPENINGS or PORES that enable GASEOUS exchange |
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| 1524. |
What is the value of the Van’t Hoff factor (i) for solutes that dissociate in water? *(a) > 1(b) < 1(c) 0(d) Not defined |
Answer» (b) < 1 is the ANSWER..Hope its HELP... |
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| 1525. |
What is stomata? please give me some thanks friends please |
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Answer» In botany, a stoma, ALSO CALLED a stomate is a pore, found in the EPIDERMIS of leaves, stems, and other organs, that controls the rate of gas exchange. The pore is BORDERED by a pair of specialized parenchyma cells known as guard cells that are responsible for REGULATING the size of the stomatal opening.
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| 1526. |
The no. of electrons in 1.6g of CH4 is approximately(1) 25*10²⁴(2)1.5*10²⁴(3)6*10²³(4)3.0*10²⁴ |
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Answer» 6*10^23 MEANS OPTION C is the CORRECT answer hope it helps you ☺️ |
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| 1527. |
What is stomata? i am rohan |
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Answer» Answer: |
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| 1528. |
15. दो परिमाण में समान विजातीय आवेश परस्पर कुछ दूरी पर रखे हैं उनके मध्य F न्यूटन बल कार्यरत है। यदि एक आवेश का 75% दूसरे आवेश को स्थानान्तरित कर दिया जाये तब उनके मध्य बल पूर्व मान का कितना गुना हो जायेगा 7F F ( 16 (ब) 16 9F (स) (द) 15 16 F 16 |
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Answer» i Don no .................. |
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| 1529. |
Ch3_ch2_oH in presence of ∆ gives,that. |
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Answer» CH3-CH2-OH + 3 O2 ----> 2 CO2 + 3 H2O Because CH3CH2OH is a hydro CARBON, it will GIVE CO2 and H2O when it DECOMPOSES in presence of heat and Oxygen. |
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| 1530. |
How does cracking and reforming differ from each other |
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Answer» Catalytic CRACKING and catalytic REFORMING processes are very important reactions used in the PROCESSING of crude oil. ... The main DIFFERENCE between catalytic cracking and catalytic reforming is that catalytic cracking gives cracked products whereas catalytic reforming gives reformate products. |
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| 1531. |
What do you mean by 1 atom of C and 1 gram atom of C? |
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Answer» Answer: One gram atom is the garm ATOMIC weight of an ELEMENT. the MASS of an element which is numerically equal to the atomic weight in grams is called as garm atom. 1 gram atom AOF CARBON = atomic weight of carbon = 12 g. |
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| 1532. |
Define 1) Isothermal Process 2) Enthalpy of sublimation. Write one statement of 1st law of thermodynamics and it's mathematical expression? |
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Answer» Answer: The isothermal process is a process that TAKES PLACE at the constant temperature (T = Constant, DT = 0). In the T-S plane, an isothermal process is represented by a straight line parallel to the S-axis |
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| 1533. |
The temperature at which the molecules are able to overcome the intermolecular force of attraction and become free to move at their own and thus changes from solid to gas directly is ?? |
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Answer» Larger and HEAVIER atoms and molecules EXHIBIT stronger dispersion forces than do smaller and lighter atoms and molecules. F2 and Cl2 are gases at room temperature (REFLECTING weaker attractive forces); Br2 is a liquid, and I2 is a solid (reflecting stronger attractive forces). Bina padhe answer kiya hai Spam op ✌XD |
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| 1534. |
Q.44: Durin electrolysis of aqueous CuSO4 usingcopper electrodes , there is competition among OH-, SO42-and copper electrode to get oxidise at anode :(i) Cu - Cu2+ + 2 e- ; E0Cu2+/Cu = + 0.34 V(ii) 2 H2O (l) - O2(g) + 4 H+(aq) + 4 e-; E0red = +1.23 V(iii) 2 SO42- - S2O82- + 2 e- ; E0red = +2.05 VWhich reaction will be preffered on anode :(a) (i) (b) (ii) (c) (iii) (d) none of thes |
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Answer» घर में गैस खत्म होने के बाद इमरजेंसी में भी रोटियां पकाई जा सकती है |
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| 1535. |
Method used for the purification of bauxite ore containing excess of Si0, is termed as (a)Hall's method ( b) Serpek's method c) Bayer's method (c)None of theseanswer one |
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Answer» C. Bayer's method Explanation: The Bayer PROCESS is the principal INDUSTRIAL means of refining bauxite to produce alumina (aluminum oxide) and was DEVELOPED by Carl JOSEF Bayer |
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| 1536. |
What is thermodynamics ??? |
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Answer» Answer: Thermodynamics in physics is a BRANCH that deals with heat, work and temperature, and their relation to energy, radiation and physical PROPERTIES of matter. To be specific, it explains how THERMAL energy is converted to or from other FORMS of energy and how matter is affected by this process. |
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| 1537. |
What is centrifugation ??? |
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Answer» Answer: Centrifugation is a technique that helps to separate mixtures by applying centrifugal force. A CENTRIFUGE is a device, generally driven by an ELECTRIC motor, that puts an object, e.g., a ROTOR, in a rotational movement around a FIXED axis. |
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| 1538. |
22. Period 3 corresponds to the filling of (a) K ( b) L (c )M (d) N |
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Answer» CORRESPONDS to the filling of (a) K ( b) L (c )M (d) N |
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| 1539. |
How is the molar mass of a nonvolatile solute related to the depression in freezing point? |
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Answer» If the elevation in boiling point of a solution of non-volatile, non-electrolytic and non-associating solute in a solvent (Kb=x K kg mol−1) is y K, then the DEPRESSION in freezing point of solution of same concentration WOULD be: [Kf of the solvent =z K kg mol−1] #Copied -_-!! |
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| 1540. |
Which has the highest molar conductance :(a) 0.01 M NaCl (b) 0.05 M NaCl (c) 0.005 M NaCl (d) 0.02 M NaCl |
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Answer» . . . . . . . . . . . . . . . . . |
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| 1541. |
10. Complete the following reaction equation: a.C6 H5-N2CI+ KI b.C2H4 + Br2 CCI4 |
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Answer» C6H5N2Cl + Ki -------> C6H5I + KCN + N2 C2H4 + Br2 (in presence of CCL4) -------->CH2 - CH2 Hope it helps
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| 1542. |
Arrange the following in onders of increasing freezing points give reasons 0.1m Na3Po4 , 0.1m glucose, 0.1m Nacl |
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| 1543. |
Numberof Benzene ring present in Naphalene is a) 3 b) 1 c)2 d)4 |
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Answer» (C)2 Explanation: NAPHTHALENE is COMPOSED of two benzene RINGS. |
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| 1544. |
Find ideal product and suggest detail reaction |
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Answer» Answer: The relative amounts of reactants and products REPRESENTED in a balanced chemical equation are often referred to as stoichiometric amounts. All the exercises of the preceding module involved stoichiometric amounts of reactants. For example, when CALCULATING the amount of product generated from a given amount of reactant, it was assumed that any other reactants REQUIRED were available in stoichiometric amounts (or greater). In this module, more realistic SITUATIONS are CONSIDERED, in which reactants are not present in stoichiometric amounts. |
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| 1545. |
Do one of them plz |
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Answer» c a r b o x y l I c a c I d o h s I n g l e b o n d |
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| 1546. |
Explains it plz tomorrow is my exam |
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Answer» I don't KNOW |
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| 1547. |
Share mechanisms also |
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Answer» Explanation: Some organisms live together to share their shelter and nutrients, and are said to have symbiotic relationships. Lichens and bacterium RHIZOBIUM, for example, show symbiotic relationship. Rhizobium bacteria help FARMERS by producing soluble nitrogen that is NEEDED to REPLENISH nutrients in the soil. |
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| 1548. |
Kindly answer it tomorrow is my exam |
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Answer» I don't KNOW |
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| 1549. |
What is the role of I react with IO 3 in acidic medium1 reducing agent2 oxidising agent3 precipitating agent4 chelntin agent Ans Serious |
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Answer» oxidising agent is the correct answer Explanation: HOPE it helps mark as BRAINLIEST |
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| 1550. |
Plz solve it...and help me..do it in detail |
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Answer» my SNAP = kittupareek9330 |
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