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. |
NH3 + CuO ---------> Cu + N2 +H2O balance the equation |
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Answer» Balanced EQUATION: 2 NH3 + 3 CUO = N2 + 3 CU + 3 H2OPLEASE MARK MY ANSWER AS BRAINLIEST... |
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| 2. |
How manycarbon atomosare there in isooctav |
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Answer» tion:Like octane, ISOOCTANE has eight carbon atoms and is also used as a fuel. Isooctane is an example of a BRANCHED chain hydrocarbon, and is a five carbon chain with THREE methyl groups at various points in the chain. Both ocatane and isooctane are ISOMERS - they have the same MOLECULAR formula but different structures. |
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| 3. |
10. Phosphate containing fertilizers causes water pollution. Addition of suchcompounds in water bodies causes |
| Answer» TION:bbbvhhbskfnkdwjdjdidjd | |
| 5. |
If the pressure of 200 ml N2 gas at a temperature of 400 k is 1.5 bar then S.T.P find the size of N2 gas |
| Answer» SORRY it GOING up to the MIND............ | |
| 6. |
Answer the question fast. Is it visible now |
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Answer» 1)O2)O2. 16×2=32. 6.022×10^23 molecules of OXYGEN3)Na. 23. 6.022×10^23 atoms of Na4)Na+ , 23. 6.022×10^23 IONS of Na+5)NaCl. 23+35.5=58.5. 6)H2O. 1×2+16=186.022×10^23 UNITS of H2O |
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| 7. |
What is the mass of 12 atoms of carbon |
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Answer» Atomic MASS, the quantity of matter contained in an atom of an element. It is expressed as a multiple of one-twelfth the mass of the carbon-12 atom, 1.992646547 × 10−23 gram, which is assigned an atomic mass of 12 UNITS. In this scale 1 atomic mass UNIT (amu) CORRESPONDS to 1.660539040 × 10−24 gram. EXPLANATION:hope Its help |
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| 8. |
Find the amount of heat required to change the temperature of 3 kg water from 10 C to 30 C (given specific heat = 4182) |
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Answer» 4,200 joules Explanation:The specific HEAT capacity of a material is the energy REQUIRED to raise one kilogram (KG) of the material by one degree Celsius (°C). The specific heat capacity of WATER is 4,200 joules per kilogram per degree Celsius (J/kg°C). This means that it takes 4,200 J to raise the temperature of 1 kg of water by 1°C.Kindly mark me as BRAINLIEST.....plzzzhope u like my answer... |
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| 9. |
Guy's don't spam ............. |
| Answer» TION:Absultly reactant is copper SULPHATE and zincbecause zinc can DISPLACE to copper | |
| 10. |
Guy lussacs law of chemical composition is valid for all substances (true or false) |
| Answer» MARK this ANSWER BRAINLEST to WATCH answer | |
| 11. |
Nilonorepindean delail. पिरोन को अनुनाटो संपना, बनाने की विधियों तथा आलौय स्वभाव को समझाExplain resonance structure, methods of preparation and acidic nature of |
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Answer» teExplanation: |
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| 12. |
A. Tick () the correct alternative:1. The area with very high density of plant is a-a. Forestb. Grassland2. The life supporting system on the earth's surface is called-c. Pastured. None of thesea. Ecologyb. Biosphere3. Which of the following trees does not grow in the Mediterranean region?c. Ecosystemd. None of theseCorkb. OliveC. Rubberd. Oak4. Which of the following is not a part of the tundra vegetation?a. Beechb. Short grassc. Mossd. Lichen5. The temperate grasslands in South Africa are called the-a. Downsb. Veldtsc. Pampasd. None of these6. Which of the following animals is not found in Australia? answerd. Kookaburraa. Emub. Rheaa.c. Lyrebird |
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Answer» acbacaExplanation: |
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| 13. |
Which gas is evolved when Mg reacts with H2SO4.also write balanced reaction |
| Answer» HYDROGEN gas is liberatedExplanation:Mg + H2SO4 -----> MGSO4 + H2 | |
| 15. |
A pure compound always have a fixed proportion of masses of its constituent.(True or False) |
| Answer» TRUE and MARK in abrainlist | |
| 16. |
Which law is depend upon average meam? |
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Answer» this is meant by brother thank you for the QUESTION PLEASE LIKE me |
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| 18. |
Explain aufbau principle Pauli exclusion principle |
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Answer» First, the Pauli exclusion PRINCIPLE lets us know that no two electrons can have the EXACT same quantum numbers. This means that two electrons in a single orbital must have opposite spins. ... FINALLY, the Aufbau Principle states that electrons fill lower ENERGY orbitals before moving to HIGHER energy orbitals. |
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| 20. |
Potassium nitrate is a neutral saltbecause it is a salt of * |
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Answer» It is an ionic SALT of potassium ions K+ and nitrate ions NO3−, and is therefore an alkali metal nitrate. It occurs in nature as a MINERAL, niter. It is a source of nitrogen, and nitrogen was NAMED after niter.Kindly mark me as brainliest...plzzzhope u LIKE my answer... |
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| 21. |
the volume of a gas is 1520ml at 27c and 600 mm pressure. what volume will the gas occupy at S. T. P |
| Answer» TION:P1 V1 /T1 =P2 V2/T2600×1520÷300=760×V2÷273V2 =600×1520×273/300×760v2 =1120ml | |
| 22. |
Plz answer the organic qn |
| Answer» OPTION 4Explanation:In 2ND option NO2 is there i.e it is acidicIn 3RD CH3 is there i.e it is basic | |
| 23. |
In gymnosperms , dominant phase is |
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Answer» The dominant PHASE in the tracheophyte LIFE cycle is the diploid (sporophyte) STAGE. ... The reproductive structures of the sporophyte (cones in gymnosperms and flowers in angiosperms), produce TWO DIFFERENT kinds of haploid spores: microspores (male) and megaspores (female). |
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| 24. |
니ookzoomL Na wyj swyg)les bar si s4P a Naalled |
| Answer» SORRY mate can't UNDERSTAND ur QUESTION | |
| 25. |
What type of reaction is represented by the digestion of food in our body |
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Answer» DecompositionA decomposition reaction is a TYPE of chemical reaction in which a SINGLE compound breaks down into two or more elements or NEW compounds. Digestion in our body is also an EXAMPLE of decomposition REACTIONS. |
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| 26. |
What is electron affinity? Write five affecting factors. |
| Answer» SMALLER the size of an atom, GREATER is its electron affinity. As the size of atom INCREASES, the effective nuclear charge DECREASES or the nuclear attraction for adding electron decreases. Consequently, atom will have less tendency to attract additional electron TOWARDS itself | |
| 27. |
ALL Chemical eqiations,formulas which comes in 1Oth Boards |
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Answer» tion:7: Types of Chemical Reactions7.01: Types of Chemical Reactions - DOUBLE DISPLACEMENT Reactions. ... 7.02: Ionic EQUATIONS - A CLOSER Look. ... 7.03: NEUTRALIZATION Reactions. ... 7.04: Single Displacement Reactions. ... 7.05: Composition, Decomposition, and Combustion Reactions |
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| 28. |
How do you say that a reaction between acid and base is completed explain it with an example |
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Answer» jvsgaghwkabahqjananja |
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| 29. |
Balence the equation by partialmethodCu + HNO3HNO3 -Cu(NO₃)₂ + N₂O +H₂O |
| Answer» TION:CU + 4hno3--------cu(NO3)2+2n2o+2h2o | |
| 30. |
Essay on Jeevan me khel kud Ka |
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Answer» खेल एक शारीरिक क्रिया है, जिसके खेलने के तरीकों के अनुसार उसके अलग-अलग नाम होते हैं। खेल लगभग सभी बच्चों द्वारा पसंद किए जाते हैं, चाहे वे लड़की हो या लड़का। आमतौर पर, लोगों द्वारा खेलों के लाभ और महत्व के विषय में कई सारे तर्क दिए जाते हैं। और हाँ, हरेक प्रकार का खेल शारीरिक, मानसिक, मनोवैज्ञानिक और बौद्धिक स्वास्थ्य के साथ गहराई से जुड़ा हुआ है। यह एक व्यक्ति के शारीरिक और मानसिक स्वास्थ्य को बनाए रखने में मदद करता है। नियमित रुप से खेल खेलना हमारे मानसिक कौशल के विकास में काफी सहायक होता है। यह एक व्यक्ति के मनोवैज्ञानिक कौशल में भी सुधार करता है। यह हमारे अंदर प्रेरणा, साहस, अनुशासन और एकाग्रता लाने का कार्य करता है। स्कूलों में खेल खेलना और इनमें भाग लेना विद्यार्थियों के कल्याण के लिए आवश्यक कर दिया गया है। खेल, कई प्रकार के नियमों द्वारा संचालित होने वाली एक प्रतियोगी गतिविधि है। |
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| 31. |
Calculate the mass of one molecule of nephthalene(c10 H8) |
| Answer» ONE molecule of naphthalene is :- molecular mass :- C= 12 , H= 1 = C10 H8 = 12×10+1×8 = 120+8 = 128 grams mass of one molecule naphthalene = 128 grams | |
| 32. |
At constant temperature volume of a gas at 2atm pressue is 10 l .What is the volume of a gas if the pressure is increased by 4 atm?? |
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Answer» So, the FINAL volume of the GAS is 3.33 Litre if the pressure is INCREASED by 4 ATM. 1.0. |
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| 33. |
C3. Match the two columns. Column A1. Magnesium2. Potassium3. Gold4. Zinc5. Aluminium6. Iron7. MercuryColumn B(i) Occurs in free state(ii) Used to wrap food(iii) Used in fireworks(iv) Used in thermometers(v) Used to galvanize iron(vi) Can be cut with a knife(vii) Occurs in combined form |
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Answer» 1magnesium - Used in fireworks2potassium - Can be CUT with a knife3gold. - Occurs in free state4zinc. - Used to GALVANIZE iron5aluminium - Used to WRAP food6iron - Occurs in COMBINED form7 mercury - Used in THERMOMETERS |
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| 34. |
Please solve immediately |
| Answer» PLEASE MARK as BRAINLIST....O2 is answer CH4 is answer NH3 is answer | |
| 35. |
Bblance the following lonic @ 004AL + H+ --> AL + Ho. please answer fast |
| Answer» ALUMINIUM +HYDROGEN =aluminium holmiumExplanation:Have a NICE dayFollow me | |
| 36. |
ताँबा परमाणु की आद्य (ground) अवस्था में इलेक्ट्रॉनिक विन्यास है-[2000](a) [AT] 3d9.482(b) [Ar] 3410402(C) [AT] 3d10(d) Ar] 3d10,40*4p |
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| 37. |
What is the use's of baking soda |
| Answer» BAKING soda is a VERSATILE ingredient that has many uses besides cooking. It shines when it comes to neutralizing ODORS and cleaning. This household staple can help remove tough stains, eliminate foul odors, and clean difficult areas like the OVEN, microwave, and tile grout.Jul 13, 2020Explanation:Pls mark my answer brainliest | |
| 38. |
Write the types of chemical equation. Define its limitations. |
| Answer» BALANCED CHEMICAL equationUnbalanced chemical EQUATION | |
| 39. |
Write the characterstics of s_block nd p_block elements |
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Answer» PROPERTIES OF S-BLOCK ELEMENTS - DEFINITIONFollowing are the properties of s-Block elements:They all are metals They have low ionization enthalpies They lose the outermost electron(s) to form cation Group 1 elements lose 1 electron while the group 2 elements LOSES 2 electrons Metallic character increases down the group Because of high reactivity they are never found pure in nature Reactivity increases down the group Compounds of s-Block are ionic in natureException to this is beryllium and lithiumPROPERTIES OF P-BLOCK ELEMENTS - DEFINITIONFollowing are the properties of p-block elements.They are solids/liquids/gases at room temperature (Br is liquid) They have variable oxidation states They form acidic OXIDES They IMPART no characteristic colour to the flame Generally they form covalent compounds Halogens form salts with alkali metals They have high ionization potentials They have very large electron GAIN enthalpies The aqueous solutions their oxides are acidic in nature |
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| 40. |
What colour is seen if acid is treated with methyl orange |
| Answer» METHYL orange shows red color in ACIDIC MEDIUM and yellow color in BASIC medium. Because it changes color at the pKa of a mid STRENGTH acid, it is usually used in titration for acids.Kindly mark me as brainliest...plzzzhope u like my answer.. | |
| 41. |
A sample of a gas is held in a rigid container of 595ml at -10 degree celcius and 400 torr. what will it's pressure be at 10 degree celcius in the same container ? |
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| 42. |
Calculate charge in Faraday in 0.2 mile of mg++ ion |
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| 43. |
Why is it generally recommended to use toothpastes which are generally basic in nature? |
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Answer» Pelase mark as Brainlist and VOTE alsoo...Explanation:Tooth paste is often BASIC in NATURE to counteract ACIDITY in the mouth. tooth paste are basic in nature because in our mouth there are certain TYPES of acids which can also causes tooth decay so we brush our teeth the basic nature of toothpaste reacts with the acids present in the mouth and hence it becomes neutral. |
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| 44. |
Write chemical name and method of preparation for bleaching powder and washing soda |
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Answer» Baking soda is a white crystalline compound with a slightly salty TASTE. Its chemical formula is NaHCO3 and is generally KNOWN as sodium bicarbonate. Chemical formula of BLEACHING Powder is CaOCl2 and its Chemical name is Calcium Oxychloride. It is Prepared by Chlorine gas over dry SLAKED lime.Jul 23, 2019brainly.in › ... › Secondary SchoExplanation:mark brainlist |
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| 45. |
What is compound? discuss the types of compound. |
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Answer» the difference type of compoundsand the other HAND, and I have a great DAY, but it is the first to see the latest version is the BEST PRICE you see |
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| 46. |
Plz answer the nomenclature qn |
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Answer» tion:3-bromo, 2-methyl but-1-ene |
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| 47. |
1 point Producers, consumers anddecomposers are dependent oneach other for theirOgrowthOreproductionObreathingOsurvival1 pointOrganisms which breakdown deador waste matter in to simplersubstances are termed as *Oproducers |
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| 48. |
What do you mean by alloys ? |
| Answer» MIXTURE OF TWO OR MORE SUBSTANCEMARK ME AS BRAINLIEST PLEASE | |
| 49. |
Where do the maximum number of plants and animals live on the earth and why? |
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Answer» The QUESTION has held for the two decades since, EVEN as humans have explored more and more of the DEEP ocean. Scientists now estimate that 80 percent of Earth's species LIVE on land, 15 percent in the ocean, and the remaining 5 percent in freshwater.Explanation:please .mark me as BRAINLIEST |
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