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. |
Carbon burns in oxygen to form carbon dioxide . The properties of carbon are |
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| 2. |
Name the bond present in methane |
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Answer» covalent bondExplanation:because carbon atom have 4 electron in outermost SHELL and it takes 4 electron from other to became STABLE .It is only possible by SHARING electron |
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| 3. |
Which of the following gases has the highest density under standard conditions a) co. b)N2o c) C3h8. d) So2 |
| Answer» SO2 has HIGHEST DENSITY | |
| 4. |
Chapter no 9 self practice, 9f questions no 3 f in schandpublication class 7 |
| Answer» PLEASE write the question of that BOOK that will gives easy to give the answer | |
| 5. |
Paper ha more passions than human being |
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Answer» because the DIARY is silent RECORDER of ANNE's THOUGHT, non-judgemental and PATIENCE |
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| 6. |
Why is the size of sulphur minus 2 is greater than size of argon |
| Answer» EXPLANATION:As anion have larger SIZE due to size ORDER:Anion)ATOM)cation | |
| 7. |
What is decomposition reaction class 10 chemistry? Spams are seriously reported. |
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Answer» A REACTION in which a SINGLE SUBSTANCE is broken down into two or more SUBSTANCES is decomposition reaction. |
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| 8. |
Koi points de ga huh ??? |
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Answer» ovel padaartho OCTEL ovel overtek octel octel ovel |
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| 9. |
Si full form in chemistry |
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Answer» Système internationalExplanation: |
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| 10. |
What is oxidation and reduction?pmgdmqihzp |
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Answer» Oxidation is a process in which a chemical SUBSTANCE CHANGES because of the addition of oxygenReduction, any of a class of chemical reactions in which the NUMBER of electrons associated with an atom or a group of atoms is increased. EXPLANATION:Hope it helps you |
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| 11. |
Why is oxidation and reduction?pmgdmqihzp |
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Answer» tion:OXIDIZING and reducing agentsOxidizing and reducing agentsThat is, the oxidant (oxidizing agent) REMOVES electrons from another SUBSTANCE, and is thus itself reduced. And, because it "ACCEPTS" electrons, the oxidizing agent is also called an electron acceptor. Oxygen is the quintessential oxidizer. |
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| 12. |
What is meant by atomic hydrogen torch?explain. |
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Answer» hydrogen welding (AHW) is an arc welding process that uses an arc between two TUNGSTEN electrodes in a shielding atmosphere of hydrogen. This device may be called an atomic hydrogen torch, NASCENT hydrogen torch or LANGMUIR torch. The process was also known as arc-atom welding.Pls Mark ‼️ As BRAINLIST ❣️ |
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| 14. |
For the reaction, product p will be? |
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Answer» Correct option isDReaction takes PLACE by carbene mechanism followed by RING expansion.Carbene adds to (=) bond of five membered ring and simultaneously changes (−NH2) group in six-membered ring to (−N⊕≡C⊖) (isocyanide group) (CARBYLAMINE reaction) |
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| 16. |
Give the IUPAC names of following complexes. (i) [Pt (en)2 Cl2 ] Cl2 (ii) [C. (NH3)s Coz]+1(iii) Na2 [Pd C16](iv) [Fe (CN)614 |
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Answer» मललयढथलछ़द ज्ञलतततदथढयडथदडक्षसयृ |
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| 17. |
Ghee is a homogeneous or heterogeneous mixture ? |
| Answer» BUTTER, ghee, WATER, ink, glass, paper, sugar, banana, orange, marble, blood, wood. Water and sugar is fully pure substance.Explanation:Hoped my answer HELPED you and mark me as BRAINLIEST | |
| 18. |
What do you understand by the term oxidation number? oxidation number refer to the number of charges an atom would have in a molecule or an ionic compound,if electrons were transferred completely the oxidation number reflect the number of electron transferred. |
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Answer» Oxygen Number refer to the number of charges an atom would have in a molecule Or an ionic compound , if ELECTRONS were TRANSFERRED completely the oxidation number reflect the number of ELECTRON transferred. Thanks Explanation: PLEASE mark me Brainliest |
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| 19. |
There are 18 elements in the fourth period of the modern periodic table. Explain. |
| Answer» TION:Classification of Elements and Periodicity in Properties. Account for the FACT that the 4th period has eighteen and not eight elements. Therefore, 18 elements (not eight) are present in the 4th period. The 4d and 4F sublevels are higher in enthalpy than 5s and HENCE are filled up in the next periods.hope it helpsthank u | |
| 20. |
in this change. 7. (i) What is observed when a solution of potassium iodide is added to a solution of lead nitrate in a test tube? (ii) What type of reaction is this? (iii) write the balanced chemical equation to represent the above reaction |
| Answer» SORRY I didn't KNOW about that | |
| 21. |
The rate constant for the first order reaction is 40 s¹. How much time will it take to reduce the initial concentration to 1/8 th value. |
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Answer» The rate constant for a first ORDER reaction is 60's 1 How MUCH time will it take to reduce the concentration of reactant to 1 16 th of its initial valueWe are given the value of rate constant for a first order reaction as 60 s−1. As a RESULT, it will take 4.62×10−2s to reduce the initial concentration of the reactant to its 1/16th value.Explanation:Mark as brainliest |
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| 22. |
Hihihihihihihihihihihihihihihihihihihihihihihihihihihihihihihi |
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Answer» hiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiExplanation:how are you |
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| 24. |
an enema analysis of A polyester in sample so that it had close to 100% racemic the arts the sample would be-( a) isotactic polystyrene ( b)syndiotactic polyester (c )atactic polystyrene |
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| 25. |
Pls tell the answer i am confused |
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Answer» 1. cuprum2. ¡¡) B3. electron4. Beryllium 5. I don't KNOW ANSWER I am sorry6. I don't know answer I am SORRY |
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| 26. |
14.Which of the following is a correct statement about fractional distillation * 1 point (a)The components of the mixture have different densities (b)The components of the mixture have different melting points (c)The components of the mixture have different boiling points (d)The components of the mixture form a heterogeneous mixture |
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| 27. |
Epimers differs in configuration at: a.C-1 carbonb.C-2 carbonc.C-3 carbond.none of thes. |
| Answer» BEXPLANATION:EXAMPLE GLUCOSE and MANNOSE are c-2 EPIMERS | |
| 28. |
Oh ikhda mhadeep ha jissa jalwayu chawal di kheti lyi vdhere dhukwa Manya jaanda hai |
| Answer» PHOTOGRAPHY is an ACT,application or practice of creating DURABLE images by recording light.sorry i didn't UNDERSTAND ur question? | |
| 30. |
Hydration a) takes place through carbocation. b) is a reversible process. c) follows SN1 mechanism. d) All of the above |
| Answer» C is CORRECT this is EASY | |
| 31. |
Define period of periodic table |
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Answer» a periodic table is a table in which all the elements are present BASED on their specifications LIKE ATOMIC weight , atomic NUMBER etc.Explanation: |
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| 32. |
Balance the equation 1. BaCl2 + H2SO4 -----> BaSO4 + HCl |
| Answer» H2SO4 -----> BASO4 + 2HCLmark as BRAINLIST | |
| 33. |
What is proton? kon ho tum |
| Answer» ONE of the THREE types of PARTICLES that FORM all atoms. Protons have a positive electric charge | |
| 34. |
Can anybody tell me what are the 2 uses of the himalayas |
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Answer» Himalayas are : They attract tourists.They ALSO stop COLD winds from CENTRAL ASIA. |
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| 35. |
Jinga lalaa huuu huu xdky kam h -_-+ |
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| 36. |
The salt which possesses water of crystallization solution is pls give me correct answer |
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Answer» A well-known EXAMPLE of salts that have the water of CRYSTALLIZATION is BLUE vitriol or hydrated COPPER sulphate. |
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| 37. |
Calculate the density: An object has a mass of 500 grams and a volume of 50 cm3. What is its density? Remember D=m/V A. 50 g/cm3 B. 10 g/cm3 C. 5 g/cm3 D. 100 g/cm3 |
| Answer» OPTION B is CORRECT Explanation:DENSITY =mass /VOLUME =500/50 =10g/cm^3 | |
| 38. |
Determine the number of phases, components and degrees of freedom in the following equilibria : (0) CaCO3=Cao(s) +CO2g) |
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Answer» The Phase RULE for non REACTING systems is GIVEN by: F = 2 - P + N F = Number of degrees of freedom P = Number of distinct PHASES present during equilibrium N = Number of chemical species present during equilibrium. |
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| 40. |
Are you an moj user : if you are please follow 'niranjana87' , like and support |
| Answer» PLS DEAR MARK me as BRAINLEST | |
| 41. |
HI GUYS! I AM CONFUSED IN CHEMISTRY PLZ DO THIS AND ANSWER ME(CRISS CROSS METHOD TO BE USE IN THE QUESTION) |
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Answer» just criss cross the valencies then your answe will be readyExplanation:hn03-since VALENCY of h and NO3 is 1 so U can just write Hno3-hope this helps |
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| 42. |
The valency of Argon is zero. Justify your answer |
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Answer» The electronic configuration of argon is 2,8,8. The outermost SHELL has 8 ELECTRONS so there is no need to gain or loose electrons to make it octet(i.e.8 shells in the outermost shell). HENCE its valency is 0 |
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| 44. |
Hehe ele ab chup hogaya me aapke bestu ne thana thaya mere bestu ne thaya kya?^__^ |
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Answer» uwid8w wiwii1 u2isiiw uwusiiw |
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| 45. |
How many significant figure in 600.03 chemistry answer fast |
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Answer» would have 3 SIGNIFICANT figures. If it had been 600.0, then the next NUMBER would be 600.1, 600.2, etc, and 600.0 would have 4 significant figures.I hope it's helpful for you ✌️ |
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| 46. |
Ask any question from the periodic classification |
| Answer» OK please follow and thank you for POINTS Explanation:68.4K+ Views. Hint: We know that 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. | |
| 47. |
Balance the following equation by oxidation number method K2Cr2O7 + KI + H2SO4 → K2SO4 + Cr2(SO4)3 + I2 + H2O |
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Answer» tion:question:- Balance the following equation by OXIDATION number method K2Cr2O7 + KI + H2SO4 → K2SO4 + Cr2(SO4)3 + I2 + H2OSol.in the ATTACHMENT given above! |
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| 49. |
Is dehydrogenation oxidation or reduction? |
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Answer» alcohol is DEHYDRATED to FORM an alkene, ONE of the two carbons loses a C-H BOND and gains a C-C bond, and thus is OXIDIZED. |
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| 50. |
Which colour of rose flower symbolises friendship a. red colour.b. yellow colour.c. pink colour.d. blue colour |
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Answer» mth of the yellow ROSE SYMBOLIZES friendship, JOY and gladness. These flowers can also be USED as a sign of remembrance or affection. |
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