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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. |
Please solve qn no47 |
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Answer» Kkskdkdkskmskskskieorororopdldkdalkakakdmcnfufjrmfjnfmcmmcmc,clcppeoeie |
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| 2. |
Which of the following alkane is not formed in woods reaction Methane Ethane propane butane |
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| 3. |
तीन तत्वों की परमाणु संख्या 5, 7 एवं 10 है बताइए कि --1) कौन सा तत्व वर्ग 13 का है।2) कौन सा तत्व वर्ग 15 का है।3) सभी तत्व किस आवर्त के हैं। |
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Answer» Explanation: atomic no. 7- group 15 all are of 2nd PERIOD. |
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| 4. |
Define reduction??????? |
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Answer» Answer: Reduction MEANS loss of ELECTRONS. please mark BRAINLIEST |
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| 5. |
Characteristics of isotopes |
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Answer» Explanation: ISOTOPES are atoms of the same element with same number of electrons and PROTONS but different number of neutron. Since they have different numbers of neutrons, this AFFECTS the MASS number. Mass number determines the physical properties such as boiling/melting/density etc. ur answer.....:) |
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| 6. |
Markovnikoff's rule in presence of peroxide is HCL HBR HF HI |
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Answer» HBR is USED for anti-markonikov ADDITION in PRESENCE of PEROXIDE |
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| 7. |
Give reason:Red litmus paper turns blue when touched with aqua solution of magnesium oxide ? CLASS 10 CBSE !(NO GOOGLE PLZ) GOOD ANSWER GET "BRAINLIEAST". |
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Answer» in an ACIDIC and ALKALINE solution RED litmus paper REMAINS red . in alkaline solution the red litmus paper TURNS blue |
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| 8. |
2) Write the structure of the following compounds1-Bromo 4-ethyl cyclohexane1,4 -Dichlorobut-2-ene02-Chloro-3-methylpentane |
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Answer»
i) 1-bromo 4-ethyl cyclohexane ii) 1,4-Dicloro but-2-ENE ( I THINK this is not"ene" this is "in") III) 2-chloro-3-methylpentane |
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| 9. |
How to find a formula for cyclo hydrocarbons?with steps |
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Answer» Answer: Explanation: just form a RING between the carbon EG:- cyclo HEXANE , means there should be 6 carbon C / / C. C / / C. C / / C |
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| 10. |
Carbon atom and methyl Carbo cation contains how many pairs of electrons 8435 |
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Answer» Answer: carbon ATOM and methyl CARBO cation CONTAINS 3 pairs of electrons . |
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| 11. |
Defination of heat capacity |
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Answer» Answer: Heat capacity Heat capacity or thermal capacity is a PHYSICAL property of matter, defined as the amount of heat to be supplied to a given MASS of a material to produce a unit CHANGE in its TEMPERATURE. The SI unit of heat capacity is joule per kelvin. |
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| 13. |
Structure of pentanone |
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Answer» Answer: 2-Pentanone is isolated from soya oil (GLYCINE max), pineapple and a few other plant sources Pentan-2-one or methyl PROPYL ketone is a colorless liquid ketone with an odor RESEMBLING that of acetone. Its FORMULA is C5H10O. Explanation: |
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| 14. |
Is smell of rotten egg and pungent smell is same |
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Answer» nnnnnnnoooooooooooooo |
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| 15. |
Frequency of a radiation having a wavelength of 1000Aº is....... plzzz answer this question it's urgent |
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Answer» FREQUENCY f=c/lambda c VELOCITY of light=3 ×10^8 m/sec lambda=1000A°=1000×10^-10 m=10^-7m Frequency , f=3×10^8 / 10^-7 =3×10^15 HZ |
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| 16. |
Is amlodipine a legal drug? |
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Answer» Answer: AMLODIPINE, under the brand name Norvasc among others, is a medication used to TREAT HIGH blood PRESSURE and CORONARY artery disease. Explanation: |
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| 17. |
Calculate the number of moles in 1g of chlorine. |
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Answer» PLEASE please please MARK me as the BRAINLIEST!! |
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| 18. |
What happens when the mixture of baking soda and tartaric acid is heated with equation |
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Answer» Answer: NaHCO3 your SODIUM bicarbonate is aka BAKING soda, if you add, dry, TARTARIC acid you get Baking powder. And this stuff makes dough ( without yeast) RISING in an artificial way. PLZ MARK MY ANSWER AS THE BRAINLIEST MATE.... |
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| 19. |
What does 4 & 2 represent below?4 He2 |
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Answer» 2 is atomic NUMBER notated by ‘Z’ . here z = no of electrons= no:of PROTONS |
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| 20. |
Methane,ethane,propane....fill next 7 hydrocarbons |
Answer»
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| 21. |
Hlo guyswhat is oxidation? |
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Answer» OXIDATION is SIMPLY the addition of OXYGEN OR addition of negative particles or electron |
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| 22. |
Give the equation of the reaction when sodium hydrogen carbonate is heated |
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| 23. |
What happens when mixture of baking soda and tartaric acid is heated |
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| 24. |
30cm3 of a hydrocarbon CnH2n burns in excess oxygen to form water vapour and 120 cm3 of carbon dioxide. what is formula of hydrocarbonwho will gave appropriate answer will be mark as branlist |
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| 26. |
Answer.... the question.... |
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Answer» PRODUCT of FIRST reaction (hydrolysis of ALKENE following markonikov's rule) Product of second reaction (wurtz reaction) HOPE THIS HELPS!! |
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| 27. |
Define mass number and atomic number how are these represented around the symbol of an element the mass number and atomic number of an isotope of uranium are 235 and 92 respectively calculate the number of protons and neutrons in the nucleus of the atom |
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Answer» Answer: Mass Number is the SUM of NUCLEONS i.e. Protons and Neutrons. Mass Number is represented by A. Atomic number is the number of Protons in an atom. Atomic number is represented by Z So, if X is the symbol of element. then Z is written in the bottom left or left subscript and A is written in upper left or left superscript of the element symbols. So, Uranium would be written as follows: ²³⁵U ⁹² |
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| 28. |
The average atomic mass of a sample of an element X is 16.2 u. What are the percentages15X and 13 X in the sample? |
Answer» Hey mate following is YU rr ansnice QUE follow me and pls thank ok average amu is 16.2u and there different MASS of the unique isotope is 15 and 13 let %of i) isotope is x and ii)be 100-x put up in formula as in following IMAGE |
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| 29. |
What is ionisation? give an example |
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Answer» Answer: Ionization: CHANGING Atoms Into Charged Ions Some examples that you may be familiar with include: When sodium and chlorine COMBINE to make SALT, the sodium atom gives up an ELECTRON resulting in a positive charge while chlorine gets the electron and becomes negatively charged as a result. PLZ MARK MY ANSWER AS THE BRAINLIEST MATE.... |
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| 30. |
PLEASE Don't SPAM Suggest a condition under which magnesium could reduce alimina ? |
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Answer» Answer: (a) 34A1+O2→32A12O3 (b) 2Mg+O2→2MgO. Temperature below the point of intersection of Al2O3 and MgO curves. Magnesium could reduce alumina but the PROCESS will be uneconomical. |
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| 31. |
16 divided by 3 Express as an decimal is ...... |
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Answer» ▬▬▬▬▬ஜ۩۞۩ஜ▬▬▬▬▬▬ 5.33333333 ▬▬▬▬▬ஜ۩۞۩ஜ▬▬▬▬▬▬ |
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| 32. |
During electrolvsis of water, how can we identify the as present in each test tube? |
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Answer» we can identify the presence of HYDROGEN GAS by bringing a lighted MATCH stick or a CANDLE Explanation: it the gas lighted match stick or candle produce pop SOUND in burning then it's hydrogen. |
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| 33. |
Which element is this wht is its group and period ??? |
Answer» THE ELEMENT ISSCANDIUMIT BELONGS TO GROUP 3 AND PERIOD 4.________THANK YOU________ |
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| 34. |
What is the formula of phyneal? |
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Answer» The FORMULA of Pheneal is - C6H5OH. IUPAC ID - phenol
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| 35. |
Hey! Can you name minimum 7 legal drugs that could be used as a medicine? |
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Answer» Answer: 7 Legal Drugs Teens are Abusing A recent study by cnn.com names seven legal drugs abused by teens today. According to the National Institute on Drug Abuse (NIDA), 7 out of the top 10 drugs abused in America by teens are legal. The list is composed to herbal remedies, over the counter drugs, and prescription drugs – all of which can be purchased at one’s local pharmacy—not on the street. The study further indicated that alarmingly, about 3% of kids ages 12 to 17 admit to abusing a prescription drug in the past MONTH, and 12% of teens admit to abusing OTC cough and cold medicines in that time frame. If you are wondering how to keep those you love from abusing legal drugs while in their teens, read through the following list and be aware of what you have in your home. It just takes a minute to FIND a safe place to lock these dangerous legal substances up to prevent abuse. Prescription Stimulants: if a prescription is used in any way other than the doctor prescribed it, it is consider drug abuse. The most commonly abused legal prescription drug is a stimulant called Adderall. The research shows that almost 8% of 12th graders have tried Adderall, known on the street as speed. Prescription Pain Medicines: these opioids can CAUSE addiction can lead to overdose just like heroin. Many teens think that because a physician gives prescription pain pills that they are harmless. Most commonly abused by teens are the drugs Oxycontin and Viocodin. More than 7% of 12th graders admit to using Vicodin in the past year. Over the Counter Cough Medicine: Teens may abuse cough syrup because it can cause hallucinations and a feeling of being away from reality. However, it can cause dangerous side effects and panic attacks. Almost 6% of 12th graders say they’ve been high from cough medicine. Prescription Depressants: Teens may take these sedatives for their drowsy and calming effects. Nembutal, Valium, Xanax, Ambien, and Lunesta are among the most commonly abused. Use of these depressants can slow down one’s heart and breathing to dangerous levels. If alcohol is present, prescription depressants can be especially deadly. The study showed that around 2% of 12th graders report using a sedative or tranquilizer in the past month. Salvia – this drug is an herb that teens smoke or chew. Currently, the Drug Enforcement Agency in the U.S. has not made salvia illegal. However, use of it can cause a distorted sense of reality and can cause long-term learning and memory problems. Although less common in its abuse by teens, in 2009, almost 6% of high school seniors reported TRYING salvia. Anabolic Steroids – Not surprisingly, steroids are often abused by teens. Teens may want to appear larger or stronger and they don’t recognize the damage of steroid use on their bodies’ long term including shrunken testicles for men, facial hair growth for women, and kidney and liver damage. Almost 2% of high school seniors have tried anabolic steroids. Tobacco and Alcohol – Both alcohol and tobacco are legal and many teens parents use both drugs Although teens may be made aware of the dangers of alcohol and tobacco use, they may not believe the warnings if their loved ones or acquaintances are using them. Alcohol abuse kills brain cells and damages important organs in the body and smoking destroys the lungs. About 40% of 12th graders admit to drinking alcohol in the past month. |
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| 36. |
OrdinaryTitanium dioxide is usedFood preservatives are added to foodPolyester is added to cotton to give terylene.rosen is collected by downward displacement of water.the basic ingredients of most of the cosmeticslass apparatus |
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Answer» what is your QUESTION..... |
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| 38. |
Carboxyhaemoglobin ka short form |
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| 40. |
Sadak per Padi ice ko hatane ke liye Namak ka prayog Kiya Jata Hai Kyon |
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Answer» Becoz SALT are GOOD ABSORBER ✔✔✔ Explanation: MARK ME AS BRAINLIST |
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| 41. |
Hey! Can you name minimum 7 drugs that could be used as a medicine? |
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Answer» Answer: VICODIN (hydrocodone/acetaminophen) ... Simvastatin (GENERIC for Zocor) ... Lisinopril (Generic for Prinivil or Zestril) ... Levothyroxine (generic for Synthroid) ... Azithromycin (generic for Zithromax, Z-PAK) ... Metformin (generic for Glucophage) ... Lipitor (ATORVASTATIN) ... Amlodipine (generic for Norvasc) |
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| 42. |
Which of the following salts will give an aqueous solution having pH of almost 14 |
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| 44. |
Explain the activity... |
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Answer» bro TAKE 2 iron NAILS clean it with paper then take 2 beaker fill CuSo4 in both tubes then put one iron nail in one test tube and leave the another test tube for examine keep the nail in tube for 20 minutes and then take out and observe the both test tube and both iron nails Explanation: |
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| 45. |
In the laboratory preparation of oxygen from potassium chlorate manganese dioxide is added to the reactant give reason |
Answer» It serves as a catalyst.This is because it LOWERS the temperature at which oxygen is GIVEN off. in other WORDS, its MASS will not be affected at the end of the experiment. HOPE IT HELPED[;]
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| 46. |
In the laboratory preparation of oxygen from potassium chlorate maganese dioxide is added to the reactant give reason |
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Answer» ANSWERRR ☝️☝️☝️☝️☝️☝️☝️☝️ |
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| 47. |
On what basis is a chemical equation balanced?why do we need a chemical reaction to be balanced |
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Answer» it is BASED on LAW of CONSERVATION of MASS |
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| 48. |
Which of the following elements has maximum metallic character? [a] li [b] n [c] na [d] p |
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| 50. |
The number of periods in the long form of the periodic table is [a] 6 [b] 7 [c] 10 [d] 18 |
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Answer» Answer:7 is the answer Explanation: |
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