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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Three postulate of kinetic theory of matter. |
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Answer» The main POSTULATES of kinetic THEORY of matter are : (i) Matter consists of small particles called molecules. (ii) The molecules are always in random MOTION. (iii) The molecules attract ONE another with a force which decreases as the distance between them increases. Explanation: Hope it helpsMark as brainliest |
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| 2. |
Basic nature of oxide along period |
Answer» IF THIS ANSWER IS RIGHT THEN PLEASE MARK THIS ANSWER AS BRAINLIEST ANSWERHOPE THIS ANSWER IS HELPFUL FOR OTHERS |
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| 3. |
The upward force acting on the object in water or other fluid or gas is called |
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Answer» Buoyancy/Buoyant Force Explanation: |
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| 4. |
Select a colloidal solutions out of the following a) gold ornaments b) sand grains c) lime water d) paint |
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Answer» Select a colloidal SOLUTIONS out of the FOLLOWING a) gold ORNAMENTS b) sand grains c) lime water d) PAINT) d) paint is right answer |
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| 5. |
What is harmful for biosphere? give answer in short |
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Answer» Explanation: The Biosphere Affects Climate. Due to its involvement in the Earth's carbon cycle and NITROGEN cycle, the biosphere INFLUENCES the AMOUNTS of some of the major GREENHOUSE gases |
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| 6. |
today I am going to share a story which I have heard that it will happen really somewhere. it is about the opposition of girl child. once upon a time there lived a boy named mukund.He was married at the age of 17 to a girl named Nurmi, she is 12 years old. Nurmi is not a teenage girl so she is not at the age of carrying a child so mukund's parents kept her away from him. But he many times tried to misbehave with her and also beat her many times. one day he caught up and he was badly beaten by his father. Then he cried and told that she is not even seeing me as her husband. Then his parents promised that he will be soon married to a girl equal to his age. As said he was married to a girl named Lakshmi. she was his same age. she became pregnant after a few days of marriage. But it was without her willingness. Then one Day they both were sitting in a room, mukund asked to Lakshmi that whether you will give me a girl or boy baby. She asked that how will I know that? mukund with a cruel mind asked that I want a girl baby. Then Lakshmi told that ok i will pray . at the moment itself he told that if you do like that at the time itself i will kill you and the baby. end. ... see how cruel the boy is ? if you like this story you follow me . i will share more afterwards. bye |
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| 7. |
Calculate the mass of Ammonia present in 1.5 x 10^ 23 molecules |
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Answer» MASS of 1 mole of NH3 MOLECULE = 17 G. So 6.023 X 1023 MOLECULES = 17g ∴1.5 x 1023 molecules = 17/ 6.023 x 1023 * 1.5 x 1023 molecules = 4.23 g |
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| 8. |
Electronic configuration when electrons are 19 |
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Answer» Answer: 19 is of POTASSIUM.. This is the ELECTRONIC configuration of Potassium. |
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| 9. |
Upon dilution molar and equivalent conductance decreased while specific conductance increased why?give the scientific reaction |
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Answer» Answer: Molar conductance is dependent on the concentration of the electrolyte. When the solution is dilute the number of ions available PER unit VOLUME reduces, resulting in the reduction of the conductivity. Therefore, molar conductance increases with dilution. |
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| 10. |
Lowconcentrationof oxygen in the bloodand in tissues ofof people livingat highaltitude is JueToltelebane |
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Answer» ANSWER: Low concentration of oxygen in blood and tissues of people living at high ALTITUDES is DUE to low atmospheric pressure. Because at high altitude, the partial pressure of oxygen is less than at the ground level. Explanation: I HOPE IT HELPS PLEASE MAKE MY ANSWER THE BRANLIEST ANSWER IT WILL BE VERY KIND OF YOU |
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| 12. |
Why does the noble gases possess little chemical activity? |
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Answer» Explanation: The noble gases are group 18 on the periodic table, which is the column of elements on the right side of the table. ... Noble gases are the least REACTIVE chemical elements. They are NEARLY inert because the atoms have a FULL valence electron shell, with little TENDENCY to accept or donate electrons to FORM chemical bonds. |
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| 13. |
A 1.00 mole sample of gas occupies a volume of 400.00ml.If the amount of gas is increased to 2.50 moles at the same temperature and Pressure. What will the new volume be ? |
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Answer» Answer: Explanation: 1mole=400ml 2.50mole = 400×2.50ml =1000ML or 1l |
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| 14. |
Magnesium oxide is formed on burning magnesium in air true or false |
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Answer» TRUE is your answer Explanation: |
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| 15. |
By which force the anions and cations are held together in ionic compounds? |
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Answer» ANSWER: An ionic bond is formed through the transfer of ONE or more valence electrons, typically from a metal to a non-metal, which produces a CATION and an anion that are bound together by an attractive ELECTROSTATIC force. Explanation: i hope it helps.. please tag me the BRAINLIEST if you feel to do so |
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| 16. |
Ethyl alchol to ethyl chloride conversion |
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Answer» Answer: hey mate your answer my dear friend and please MARK it BRAINLIST i hope its help you Explanation: Ethanol convert into ehtyl alcohol in two steps. 1,Firstly Dehydration of Ethanol occur in the present of dehydrating AGENT which is conc H2SO4 , it removes the water molecule from ethanol and convert it into Ethene. 2, Now Ethene react with HCl , ethene have a pie bond which will break and both carbons gain their shared electrons, by which pie bond was MADE. Then Hydrogen attach with one carbon and Cl will attach with ANOTHER and the product is Ehtyl Chloride i hope its help you my dear friend |
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| 17. |
Is soap an element or compound? |
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Answer» Answer: Soap is a mixture of compounds, The compounds are mainly the sodium salts of several long chain fatty ACIDS. which are usually obtained by the hydrolysis of plant and animal oils/fats. Some of these slats in soap are sodium palmitate, sodium stearate, sodium oleate, ETC. The KEY to the soapiness of the compounds is the long hydrocarbon chain with carboxylate ION at one end. The negative charge on carboxylate ion is neutralized by the POSITIVE sodium or some times by potassium ions. |
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| 18. |
Two examples for kutchaHouses |
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Answer» here is your answer |
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| 19. |
in a reaction N2O4 gives 2NO2 the degree of dissociation of N2O4 was found to be 0.4.when reaction conducted in a 2 litre vessel what is kc of the reaction |
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Answer» (2*0.4/2)²/(0.6/2) =0.16/0.3 =0.66 |
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| 20. |
Derive the expression for equivalent resistance inseries combinalion. |
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Answer» Answer: It is observed that the total current I, is equal to the sum of the separate currents through each branch of the combination. Let Rp be the equivalent resistance of the parallel combination of resistors. By applying Ohm's law to the parallel combination of resistors, we have I = V/Rp On applying Ohm's law to each RESISTOR, we have I1 = V/R1 ; I2 = V/R2; and I3 + V/R3 From EQNS. we have V/Rp = V/R1 + V/R2 + V/R3 or 1/Rp = 1/R1 + 1/R2 + 1/R3 Thus, we may conclude that the RECIPROCAL of the equivalent resistance of a group of resistances joined in parallel is equal to the sum of the reciprocals of the individuals resistances. Explanation: |
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| 21. |
What quantity of neon would beequivalent to 6.0 x 623 atoms ofNe? |
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Answer» |
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| 22. |
14. Name the reagent used todifferentiate between carbon dioxideand sulphur dioxide gas.OLime waterOLead acetate solutionO Potassium dichromate solutionO Nessler's reagent |
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Answer» Answer: your answer: potassium dichromate solution..is a REAGENT used for DIFFERENTIATE between CARBON dioxide (Co2) and Sulphur dioxide. (So2). HOPE it helps you..Thanks... |
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| 23. |
Parkinson's disease is linked to abnormalitiesin the levels of dopamine in the body. Thestructure of dopamine is |
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Answer» Answer: A dopamine molecule consists of a catechol structure (a BENZENE ring with two hydroxyl side GROUPS) with one amine group attached via an ethyl CHAIN. As such, dopamine is the simplest possible catecholamine, a family that also includes the neurotransmitters NOREPINEPHRINE and epinephrine. Explanation: hope it helps |
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| 24. |
Give postulates of MOT and explain LACO method |
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Answer» Explanation: Molecular ORBITAL theory can be APPLIED to heteronuclear DIATOMIC molecules if the atomic NUMBERS of the two atoms in the molecule differ by one or two atomic numbers. If the given statement is true enter 1, else enter 0. |
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| 25. |
Plz tell the answer of this question.... Plz don't give any irrelevant answers.... |
Answer» At first write the ELECTRONIC CONFIGURATION of an element. From ATOMIC number 1 to 20 the element with 1-2 electrons in outermost shell is metal. Element with 3-4 electrons may be metal non-metal or metalloid. But the ELEMENTS with 5-7 electrons in OUTER most shell is essentially non-metal |
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| 26. |
Mass of calcium in 8 grams of calcium hydroxide |
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Answer» The atomic mass of Ca is 40.1 G/mol. The molar mass of Ca(OH) 2
=74g/mol. 1 mole of Ca(OH) 2
= 74 g Ca(OH) 2
=40.1 g Ca The percentage composition of calcium in calcium HYDROXIDE = 74 40.1×100
=54%. |
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| 27. |
160 gm of so3 gas find the mole of so3,sulphur,oxygen and number of molecular,total number of atom, number of oxygen atom,number of sulphur atom, volume of so3 at S.T.P |
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Answer» sorry mera PEN raaste mein shaaheed ho gya tha THO pencil se continue kra pda... by the WAY if uh find it helpful the plzzz MARK me as a brainleist |
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| 28. |
Two reading are there is 10:30 and 10:31 while correct reading is 10:38 is accurate |
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Answer» Explanation: Introduction. Budget 2018 proposed to remove Section 10 (38) of the INCOME Tax Act, 1961. As per this section, the long-term capital gains (LTCG) ARISING on sale of equity shares or UNITS of an equity-oriented mutual FUND on which Securities TRANSACTION Tax (STT) is paid was exempt from taxation.Jul |
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| 29. |
Br2 + H2 O2 is equal to b r o 3 - + H2O is balance by ion electron method |
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| 30. |
Atom & Molecules Observations Neon Solid Liquid Gas ( movement and temperature) Argon Solid Liquid Gas ( movement and temperature) Oxygen Solid Liquid Gas ( movement and temperature) Water Solid Liquid Gas ( movement and temperature) |
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Answer» Answer: Every substance (oxygen, lead, silver, neon . ... In the LIQUID phase the molecular forces are weaker than in a solid. ... SCIENTISTS refer to the large SCALE motion of the gas as the MACRO scale and the individual |
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| 31. |
6g of carbon..... complete reaction . solve it plzzz..class 11 chemistry |
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| 32. |
What is the significance of representing data through charts? |
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Answer» Explanation: Bring your data to life with engaging charts and graphs. Visual representations help us to understand data quickly. When you show an effective graph or chart, your REPORT or PRESENTATION GAINS clarity and authority, whether you're comparing sales FIGURES or highlighting a trend. |
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| 33. |
15.00 mL sample of a solution is 0.04 M in Sn2+ and xM in Fe2+. Both are easily oxidised by Cr2O72− in acidic solution to Sn4+ and Fe3+ and itself reduced to Fe3+. 18.0 mL of 0.125 M Cr2O72− is required. Thus, x is:A0.410B0.205C0.820D1.640 |
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| 34. |
1) What mass of solute needed to prepare each of following solutions?(a) 1.00 L of 0.125 M K₂SO4.(b) 375 mL of 0.015 M NaF(c) 500mL of 350 M C2H1206(Tip :- if giving answer please give correct and step wise answers and please do not write silly things in it) |
Answer» A.. 1.OO L OF O. 125 M K2SO4A...ANSWER = 21.8 G K2SO4B. 375 ML OF O. O15 M NaF.B. answer = 0.24 g NaFC. 500 Ml of 350 m C6H12O6C..ANSWER = 31.5 g C6 .H12.O6#ANONYMOUS....❤ |
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| 35. |
How will you separate calcium carbonate and water ? |
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Answer» Answer: To saperat a mixture of calcium carbonate IRON and sodium chloride in to it' s component substances USING physical means only,and DETERMINE the quantitative COMPOSITION(in percent by mass) of the mixture. |
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| 36. |
15.00 mL sample of a solution is 0.04 M in Sn2+ and xM in Fe2+. Both are easily oxidised by Cr2O72− in acidic solution to Sn4+ and Fe3+ and itself reduced to Fe3+. 18.0 mL of 0.125 M Cr2O72− is required. Thus, x is: |
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Answer» which class hope it HELPS |
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| 37. |
Calculate the radius of Bohrs fifth orbit of helium atom |
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Answer» Answer: The answer is 1.3225 nm Explanation: The FORMULA for calculating radius of the nth orbit of the HYDROGEN ATOM is. r = 0.0529 nm(N2) Here n is the orbit number. r = 0.0529nm x (5)2 r = 0.0529 x 25 r = 1.3225 nm |
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| 38. |
Types of chemical reaction explain with examples class 10 science :)//// \\\\ |
Answer» ┏─━─━─━∞◆∞━─━─━─┓✭✮ʜᴇʀᴇ ɪs ʏᴏᴜ ᴀɴsᴡᴇʀ✮✭┗─━─━─━∞◆∞━─━─━─┛◆you ANSWER is GIVING ATTACHMENT ◆ |
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| 39. |
Name all the elements of the first transition series. |
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Answer» Answer: The first main transition series begins with either scandium (symbol Sc, atomic number 21) or titanium (symbol TI, atomic number 22) and ends with zinc (symbol ZN, atomic number 30). The second series includes the elements yttrium (symbol Y, atomic number 39) to cadmium (symbol Cd, atomic number 48). Explanation: Hope it helps u dear.Please follow me |
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| 40. |
Please answer...... ....... |
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Answer» Answer: you have FREE FIRE MEANS tell the ID Explanation: you have free fire means tell the ID |
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| 41. |
What kind of isomerism is shown by[Pt(NH3)3(NO)Cl2]Br2 |
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Answer» Answer: <U>PT(NH3)4Cl2]Br2 and [Pt(NH3)4Br2]Cl2 is a type of ionisation isomer. Explanation: Hope it's HELPFUL to u mark me as brilliant |
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| 42. |
PWhen 1.5gms Ethane undregoes completecombustion produces you gones4. 4 gols co2 & 2.7show that it only obeylawconservation .of |
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Answer» Answer: 11.2 ml = 11.2 X 10 to the POWER -3 i.e 0.0112 l. one mole = 22.4 l so, xmoles = 0.0112l hence , no. of moles = 0.0005 |
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| 43. |
Write one point of difference between baking soda and baking powder. Why do we use Baking powder in making bakery items? (3M) |
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Answer» Explanation: In order to better brown, BAKING soda is added to recipes where baking POWDER is the main LEAVENING agent, to create a more alkaline ENVIRONMENT. |
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| 44. |
What is the simplelest way to explain gay lussac law with a little bit of notes |
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Answer» Answer: MAYBE LATER CLOSE Gay-Lussac's LAW (more correctly referred to as Amontons's law) states that the pressure of a given MASS of gas varies directly with the absolute temperature of the gas, when the volume is KEPT constant.[1] Mathematically, it can be written as: {\displaystyle {\frac {P}{T}}=k}. Gay-Lussac is incorrectly recognized for the Pressure Law which established that the pressure of an enclosed gas is directly proportional to its temperature and which he was the first to formulate (c. 1809).[2] He is also sometimes credited[3][4][5] with being the first to PUBLISH convincing evidence that shows the RELATIONSHIP between the pressure and temperature of a fixed mass of gas kept at a constant volume.[4] These laws are also known variously as the Pressure Law or Amontons's law and Dalton's lawrespectively.[3][4][5][6 |
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| 45. |
Defin olfactory indicator .give example |
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Answer» An Olfactory indicator is a substance whose smell VARIES depending on whether it is mixed with an ACIDIC or basic SOLUTION. Olfactory indicators can be used in the laboratory to test whether a solution is a base or an acid, a process called olfactory titration. Onion , clove oil and vanilla extract are examples. |
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| 46. |
In the decomposition of lead(1)nitriate to give lead (2)oxide,nitrogen dioxide and oxygen gas,the coefficient of nitrogen dioxide (in the balanced equation)is* |
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Answer» Answer: YES your question is ONE of DOUBTFUL so I am calculating giving U answer in COMMENT |
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| 47. |
2. When the modern period began in India |
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Answer» Answer: In EUROPE modern period began in late 15TH century in INDIA early morgen period began in 16TH century and late modern period began in 18th century. |
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| 48. |
Oil and boat float on water while needle sinks in water. Explain. |
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Answer» Answer: Like, LEAF of a plant FLOATS on the WATER because the density of leaf is less than the density of water. ... This causes the ship to displace water with a weight equal to the weight of the ship. On the other HAND, the needle displaces more water than its weight and hence it sinks. Explanation: If uh like my answer plezz follow me and like my answer.... |
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| 49. |
Answer this please .................... |
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Answer» faffwfhwyxdgfdwhwgdaasssssjwhegge |
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| 50. |
Q-3 Write the uses of decomposingreaction.please tell only a uses of decomposing. |
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Answer» Decomposition REACTION is used in : 1) Manufacture of cement or calcium oxide 2) EXTRACTION of METALS from the oxides, CHLORIDE etc 3) The relief from acid indigation. 4) Thermite welding Follow me ♥️ guys .. |
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