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. |
How can I make water go drop by drop from a bottle |
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Answer» Hey MATE here's your ANSWER |
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| 2. |
How air is used in the production of nylon class 8 |
| Answer» CAPROLACTAM is DERIVED from a production process using much the same raw MATERIALS as those for adipic acid: Benzene or phenol is HYDROGENATED to producecyclohexane. Cyclohexane is reacted with air to produce K-A oil. | |
| 3. |
What is full form of T.N.T. ??? |
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Answer» HEY mate.....^_^ Here's UR ans. =============== Full FORM of T.N.T is "TRI Nitro Toulene" |
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| 4. |
Types of fusion welding on the basis of chemical energy |
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Answer» Classification of fusion WELDING PROCESSES based on energy SOURCE, thermal source, mechanical loading and shielding.Fusion welding is a generic term for welding processes that rely on MELTING to join materials of similar COMPOSITIONS and melting points.Due to the high-temperature phase transitions inherent to these |
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| 5. |
What is the purpose of an auxiliary complexing agent? |
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Answer» An auxiliary complexing AGENT is added to an EDTA titration to prevent hydroxide formation. This is added where ONE of the solutions of titration is a metal cation. This bond between the agent and the metal is important. It MUST be strong enough to prevent the hydroxide from PRECIPITATING but at the same time weak enough to release the cation when EDTA is added. |
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| 6. |
The no. of particles present in 1 mol of nitrogen atom are |
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Answer» The number of THINGS PRESENT in ONE mole of anything is N ( Avogadro's number) which ALSO applies here |
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| 7. |
What amount of silver chloride will be obtainedby adding an excess of hydrochloric acid to a solution of .34g of silver nitrate? |
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| 8. |
☺☺hlo dear friends.......I want a help from you....here in this question we have to find avagadro no..by using the following formula and measurement...Answer. .6.022×10^23will you help ? |
| Answer» REFER to the IMAGE and MARK as BRAINLIEST if it HELPED | |
| 9. |
Maximum greenhouse gas released by which country |
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Answer» China is the country which RELEASE MAXIMUM GREEN house GASES |
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| 11. |
Fluidized bed chemical reactors chemical equation |
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Answer» Hey |
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| 12. |
Bonjour ^-^State the name of all four type of quantum numbers. GIVE three points on principal quantum no. Thanks ☺ |
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Answer» Hey sisy .....☺ |
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| 13. |
Bonjour ^-^Write the configuration of Bromine according to aufbav rule .State it's block , period no. , group no. and spin Multiciplity.Is it paramagnetic or diamagnetic ?Thanks ☺ |
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Answer» HEY sis .....☺ Here's ur ans.⬇ Atomic no. of Bromine = 35 THEREFORE it's configuration = 1s^2 2s^2. 2p^6 3s^2. 3p^6. 4s^2. 3d^10. 4p^5 No. of unpaired electrons = 1 ↪ Block = p ↪Period no. = 4 ↪Group no. = (nse + npe)+ 10 = 17 ↪Spin Multiciplity = 2|s| +1 = 2 × 1/2 + 1 = 2 It is PARAMAGNETIC as it has unpaired electrons . Hope u understand .... -------------------------------------- |
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| 14. |
What is the difference between CO and co in chemistry |
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Answer» The MAJOR differences |
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| 15. |
a catalyst changes ------.(a) order of reaction (b) stat of equilibrium (c) rate of a reaction (d) none of these |
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Answer» C because it can do that EASILY |
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| 16. |
Bonjour ^-^Pls explain Hund's Rule of Maximum Multiciplity .I don't need copied ans. from Google Thanks |
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Answer» Hey dearie.....^_^ |
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| 17. |
By which properties synthetic fibre are preferred to make dress material |
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Answer» They LAST for very LONG time. |
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| 18. |
Who discovered the hard water? ,? which year |
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Answer» Hardness in water is DEFINED as the PRESENCE of MULTIVALENT cations. In the 1960's, scientist CHRIS Gilbydiscovered that hard water can be categorized by the IONS found in the water. |
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| 19. |
By which properties synthetic fibres are preferred to make dress material? |
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Answer» *due to their excellent dye properties synthetic FIBRES are preferred to MAKE DRESS MATERIAL. |
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| 20. |
Bonjour .-^-^Explain three points about spin quantum no. Thanks |
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Answer» HEY sisy...^_^ Here's. ur ans. ============ SPIN Quantum Numbers ⬇ ✡ It is represented by 's' ✡It GIVES information about electron spin or rotation of electrons in its own axis . ✡Spin is CLOCKWISE or anticlockwise . Clockwise direction is represented by +1/2 and anticlockwise by -1/2. ✡Spin quantum no. also represents angular MOMENTUM (spin angular momentum ) ✌Hope it helps |
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| 21. |
Tall and fat contanining food items are flushed with nitrogen why |
| Answer» YE paaka tall hai kyuki MUJHI lgta hai tall ke jagah OIL aayega agr oil hai to iska answer hai: Oil and fat containing food items FLUSHED with nitrogen because nitrogen ACTS as an antioxidant and it prevent them from being oxidised. | |
| 22. |
Stability of coordination compounds formula |
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Answer» Gffdddddddddddddddddddddddddfff |
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| 23. |
Ferrous ascorbate and folic acid tablets brands |
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Answer» Lesfer XT tablets |
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| 24. |
Similarities between so2 and co2 base on chemical reaction |
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Answer» I THINK there is no similarities between SO2 and co2 I KNOW the DIFFERENCE |
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| 25. |
Which of the following is a polar compound [Pb. CET 2000]A) HCl B) {{H}_{2}}Se C) C{{H}_{4}} D) HI |
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Answer» HCl & HI are polar compounds as they have PARTIAL negative & partial positive charge on them. |
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| 26. |
Which of the following has no dipole moment [DCE 2002]A) C{{O}_{2}} B) S{{O}_{3}} C) {{O}_{3}} D) {{H}_{2}}O |
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Answer» CO2 has no dipole moment as net dipole moment is 0. Structure of CO2: O=C=O Reason: OXYGEN is more electronegative than Carbon therefore, dipole moment is in the OUTWARD direction from oxygen atoms and not the dipole moment GETS cancelled and net dipole moment is 0. Hope u understand please FOLLOW if u like. |
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| 27. |
The dipole moment is zero for the molecule [IIT 1989; MP PMT 2002]A) Ammonia B) Boron trifluoride C) Sulphur dioxide D) Water |
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| 28. |
Short note on infrared spectroscopy theory |
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Answer» Infrared spectroscopy is an important analytical technique for determining the STRUCTURE of both inorganic & organic compounds. It is also known as vibrational spectroscopy IR radiations lies in the wavelength RANGE of 0.7 - 400 µm. |
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| 29. |
Name the anomers of glucose. How do they differ and what is the chief consequence of this difference ? |
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| 30. |
Fructose contains a keto group but still is able to reduce Tollens reagent. Explain. |
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Answer» ³√︎2, ³√︎3, ³√︎4, ³√︎5, ³√︎6, ³√ ︎7, ³√︎8=2, ³√︎9, ³√︎10, ³√︎11, ³ √︎12, ³√︎13, ³√︎14, ³√︎15, ... |
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| 31. |
Mechanisum of reduction of carboxylic acid to alcohol |
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| 32. |
Reaction of amine with nitrous acid neet |
| Answer» HOPE it HELPS So MARKS it as a BRAINLIEST ANSWER | |
| 33. |
Questions on balancing chemical equations for 0 |
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Answer» HEYA ,.. |
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| 34. |
Which bond angle \thetawould result in the maximum dipole moment for the triatomic molecule YXY[AIIMS 1980]A) \theta ={{90}^{o}} B) \theta ={{120}^{o}} C) \theta ={{150}^{o}} D) \theta ={{180}^{o}} |
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Answer» D) if three molecules are in LINEAR that is 180 then DIPOLE MOMENT is maximum |
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| 35. |
(organic chemistry)... How can we identify 'iso' compounds? |
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Answer» Hii.. |
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| 37. |
A hydrocarbon contains 82.8%of carbon . Find it's molecular formula if vapor density is 29 |
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Answer» 1. Vapour Density = Molar mass of gasMolar mass of H229 =M2Molar mass of compound = 58 2. The gas contains 82.8% of C and 17.2% of H. ATOMIC mass of C = 12 Atomic mass of H = 2 So, NUMBER of MOLES of C = 82.812=6.9 Number of moles of H = 17.21=17.2 3. Simplest ratio : C = 6.96.9=1 H = 17.26.9=2.4 ≈2 So, MOLECULAR mass is C4H10. |
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| 38. |
List two common properties in solids and liquid. Fast plz...... |
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| 39. |
How can we identify "iso" groups? |
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Answer» In COMMON USE, an "ISO File" is a file that contains the complete image of a disc. Such files are often used when transferring CD/DVD IMAGES over the Internet. |
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| 40. |
Lassaigns test is not shown by diazonium salt because |
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Answer» Diazonium salts are stable only at LOW temperatures (0-50 C). At higher temperatures, they decompose to give nitrogen. In Lassaigne's test, the organic compound is converted from covalent form to ionic form by fusing it with sodium metal. THUS, the diazonium salt will decompose and lose nitrogen MUCH before being fused with sodium metal. If nitrogen is lost, then NaCN will not be formed and HENCE the compound will not give positive test for nitrogen. |
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| 41. |
Oxidation numbers of elements with examples |
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Answer» The sum of the oxidation no. in a pplyatomic ion is equal to the CHARGE on the ion. the oxidation no of sulphur ATOM in the so4 -2 ion MUST be +6 for example because THESUM of oxidation of atom in this must equal -2 |
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| 42. |
Why covalent compounds have absence of free ions ? |
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Answer» Because all the ELECTRONS r =LY SHARED by all the ATOMS. So there is no free electrons or ions. |
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| 43. |
In photosyntheis glucose or fructose is formed and why |
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Answer» At the end of PHOTOSYNTHESIS glucose is FORMED. because it is a main SOURCE of energy which is utilised in respiration to produce energy FULLED ATP MOLECULES. |
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| 44. |
One of the cell is connected wrongly the equivalent emf and effective internal resistance of combination is |
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Answer» In series |
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| 45. |
Impact of climate change on agriculture journal |
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| 46. |
Why Rutherford gave name to his model as plum pudding model |
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Answer» He named it as plum pudding model because the NEGATIVE ELECTRONS(plum) were embedded in a sphere of uniform POSITIVE charge(pudding) |
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| 47. |
In chemical reactions the gain of electron is called what |
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Answer» In CHEMICAL REACTIONS the gain of electrons is CALLED REDUCTION. |
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| 48. |
the mass & weight of an object on earth ate 5kg and 49N respectively. what will be their values on the moon ? aasume that the acceleration due ro gravity on the moon is 1/ 6th of that on the earth |
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Answer» 0.833 and 7.666 RESPECTIVELY |
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| 49. |
How to identify one compound a lewis acid or lewis basr? |
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Answer» It is based on the bond between the atoms of the compounds in a given reaction. |
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| 50. |
How to name more than one halogen organic compounds? |
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