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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. |
when magnisium reacts with oxygen then heat is needed to produce magnisium oxide still why is it called exothermic reaction? |
Answer» After it burns, it forms a white powder of the magnesium OXIDE. Magnesiumgives up TWO electrons to oxygenatoms to form this powdery product. This is an exothermic reaction. Anexothermic reaction is a TERM that describes a CHEMICAL reaction in which there is a net release of energy (HEAT). |
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| 2. |
Describe all step used in agriculture practise |
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Answer» Answer: The agricultural cycle is the annual cycle of ACTIVITIES related to the growth and HARVEST of a crop (Plant.) These activities include loosening the soil, seeding, SPECIAL watering, moving plants when they grow bigger, and harvesting, among others. The main steps for agricultural practices include PREPARATION of soil, sowing, adding manure and fertilizers, irrigation, harvesting and storage. Explanation: |
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| 3. |
Author for harry potter |
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Answer» Answer: Author for HARRY POTTER is J.K.Rowling Hope it helps .... Please MARK as brainliest |
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| 4. |
How many electrons constitute one coulumb charge?? |
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Answer» Explanation: |
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| 5. |
o.5 amphere current has been flowing in a circuit for 20 minutes calculate the number of electrons flowing from one end to the another end of the circuit |
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Answer»
GIVEN- I(ELECTRIC current)=0.5A and,. time=20min=20*60=1200s
we know that, I=ne/t e= 1.6*10-19C {CHARGE on one so, 0.5=n*1.6*10-19/1200 n*1.6*10-19= 600 n= 6*100/1.6*10-19 n=3.75*10^21 electrons |
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| 6. |
What is blinking syncretism of Sagittarius A black hole |
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Answer» Answer: Sagittarius A* (pronounced "Sagittarius A-Star", abbreviated Sgr A*) is a BRIGHT and very compact astronomical radio source at the center of the Milky Way, near the border of the constellations Sagittarius and Scorpius. It is likely the location of a supermassive black hole,[6][7][8] similar to those generally accepted to be at the centers of most if not all spiral and elliptical galaxies.Observations of a NUMBER of stars orbiting around Sagittarius A*, most notably the star S2, have been used to provide evidence for the presence of, and produce data about, the Milky Way's hypothesized central supermassive black hole, and have led some scientists to CONCLUDE that Sagittarius A* is beyond any reasonable doubt the SITE of that black hole.[9] |
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| 7. |
Write an activity to show that saliva acts on food and helprin digestion |
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Answer» 1.The enzyme salivary amylase present in SALIVA convert starch in to maltose 2.Saliva is antiseptic. It contain LYSOZYME which KILLS germs present in food and in MOUTH 3.it binds the food particles into a bolus for easy SWALLOWING |
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| 8. |
I am white and soft. I grow in rainy season . Children pluck me and admire me . I absorb nutrients from decomposed dead parts of plant and animals in the in the soil who I am |
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Answer» Explanation: |
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| 9. |
Large scale cultivation of same kind of plant at a place is called |
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Answer» MONO culture Explanation: |
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| 10. |
A train travels a distance with a speed of 30 km per hour and returns with a speed of 50 kilometres per hour calculate the average speed of train |
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Answer» average SPEED = TOTAL DISTANCE covered / total time taken average speed = 30+50 KM/ 2hrs average speed = 40km/hr hope it helps please mark brainliest |
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| 11. |
What is tropic movement explain its types |
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Answer» no IDEA.............. |
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| 12. |
Suggest some ways of proper dispersalof synthetic fibre |
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Answer» SEE attachment Explanation: |
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| 13. |
How to become a space scientist |
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Answer» Answer: Earning a master's or doctoral DEGREE in physics, astronomy or astrophysics could prepare you for work as a space SCIENTIST. Master's programs are typically completed in two YEARS; you may NEED 5-6 years to earn a doctoral degree. Physics, astrophysics and astronomy programs often overlap in subject matter. |
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| 14. |
What is myopia plz complain it |
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Answer» Answer: ⏩ⒶⓃⓈⓌⒺⓇ⏪MYOPIA :Some PEOPLE cannot see objects at long distances but can nearby objects CLEARLY. This type of DEFECT vision is KNOWN as "Myopia".It is also known as Near Sightedness. For these people the maximum FOCAL length is less than 2.5 cm. To correct this type of defect vision we need to choose a lens which forms a clear image on retina. Therefore the lens is Bi - concave lens. Explanation: ℘ℓḙᾰṧḙ ՊᾰԻк Պḙ ᾰṧ ♭Իᾰ!ℵℓ!ḙṧт✌✌✌ |
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| 15. |
You are given two sample of crushed potato and crushed apple in two test tubes . The teacher tell you to add some water and further add 2 to 3 drops of benedeit's solution in each. What change will you observe after heating both the test tubes and what does it show ? |
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Answer» Answer: 1. When we ADD drops of benedict solution (Fehling solution) to potato mesh, the crystal blue COLOR of benedict solution turns light green showing that there is a small amount of sugar PRESENT in the POTATOES. 2. When we add benedict solution to the crushed apples, we SEE the brick red color that indicates a high amount of sugar present in the apples.
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| 16. |
Why is soil a hidden resource |
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Answer» Most life on EARTH depends on soil as a direct or indirect source of FOOD. Plants and animals source their nutrients from the soil and it is home to many different forms of life. _______******______ HOPE it is helpfull:-D have a great day^_^ Explanation: |
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| 17. |
Is the hanging pen at rest or in motion |
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Answer» it is at rest Explanation: |
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| 18. |
Hejxk is a word or letter if u think it would be as simple as that |
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| 19. |
LayoutFrom the given V-T graph (see figure) what can be inferred ?implesOXsees |
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Answer» the VELOCITY time GRAPH SHOWS acceleration . the graph so formed is LINEAR . |
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| 20. |
Ouves, flowers and fruits are borne by the stoms3. Food prepared by the plant in the leaves4. Air and water passes through the stomata5. AspodinGive one word for the following.has a baby plant inside it. (seed3. It gives green colour to the leaf.it gives green colour to the leaf |
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| 21. |
Mobile phone handset Mein Antar par konsi rechargeable ka upyog Kiya jata hai |
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| 23. |
Give a relation ship between Potential difference and EMF |
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Answer» POTENTIAL difference is the work done by electrostatic force on a UNIT CHARGE, while EMF is the work done by anything other than electrostatic force on a unit charge. I don't like the term "voltage". It SEEMS to mean anything measured in volts. |
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| 24. |
| 35. पृथ्वी का वह काल्पनिक कोणीय वेग ज्ञात कीजिये जिसकेलिये भूमध्य रेखा पर प्रभावी गुरूत्वीय त्वरण शून्य होजाय :-(1) 1.25 x 10-3 rad/s (2) 2.50 x 10-3rad/s(3) 3.75 x 10-3 rad/s (4) 5.0 x 10-3 rad/s(यदि पृथ्वी विरामावस्था में हो तो गुरूत्वीय त्वरण के लिये |g = 10m/s2 लें तथा पृथ्वी की त्रिज्या 6400 km लें ) |
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Answer» Answer: The RELATIVELY cheap COST of fossil fuels is a major positive aspect. They are in abundant SUPPLY, which makes them inexpensive to drill or MINE for. In particular, coal is one of the most WIDELY available fossil fuels. |
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| 26. |
What r the limitations of modern periodic table? |
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Answer» Answer: POSITION of isotopes: all the isotopes of an element have the same atomic no. therefore they can be placed in the same GROUP of the periodic table.eg- all isotopes of carbon i.e. C12,C13,C14 are placed in same position as that of carbon(gr-14) of the periodic table. anamolous position of some PAIRS of elements: in mendleev's periodic table Co slight higher mass (58.71u). This limitation has been removed in modern periodic table, elements are ARRANGED in increasing order of atomic no. therefore cobalt with lower atomic no. comes first and nickel with higher comes later position of hydrogen: hydrogen resembles alkali metals in elec. configuration(1 VALANCED elec.) and some other properties. therefore it can be placed in gr-1 along alkali metals. at same time H also resemble halogens in its elec. configuration . therefore it can be placed in gr-17 along with halogens. but at same time it differs from both alkali metals and halogens in some other properties. eg- oxide of Hydrogen H2O which is neutral oxides of alkali metals are basic while that of halogen is acidic. hence the position of hydrogen still remain to be contriversial in the modern periodic table. however for convinience it is placed just above gr-1 in separate block and period1 because it has lowest at. no. i.e. 1 and mass 1.008u |
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| 28. |
Name any two physical properties of metals. |
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Answer» Answer: Physical PROPERTIES of metals Shiny (lustrous) in nature. Metal is a good CONDUCTOR of electricity and heat. Density and melting point is high. Mouldable (Malleable) Ductile. At room TEMPERATURE, it is in SOLID form EXCEPT for mercury. Opaque. |
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| 30. |
How to learn periodic of elements |
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Answer» by WATCH some videos and learning periodic table Explanation: |
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| 31. |
The growth of tendrils in pea plants is due to the:a) effect of sunlight on the tendril cells facing the sunb) effect of gravity on the part of tendril handing down towards the earthc) rapid cell division and elongation in tendril cells that are away from the supportd) rapid cell division and elongation in tendril cells in contact with the support. |
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Answer» Answer: d rapid CELL DIVISION and ELONGATION in TENDRILS cells in contact with the support |
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| 32. |
Name an another substance like X used to extinguish fire. |
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| 33. |
If you put one end of the rod of a metal in hot water you feel hot at the other end. What does it mean? What is this property of metals called? |
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Answer» It means that metal is a GOOD conductor of HEAT and it is TRANSFERRING heat to its end |
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| 34. |
Adaptations of coconut plant leaves fruits roots stem |
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Answer» Answer: hyyy Explanation: The coconut palm tree is a widely-dispersed species due to special adaptations developed by its seed. The seed floats due to an INTERNAL AIR cavity. The coconut's external husk protects the internal seed from PREDATORS and the salt of the ocean. Coconuts can also survive up to 120 days afloat in the sea and then GERMINATE when they are washed up on LAND. After germination the milky water inside the seed will provide enough moisture to sustain the seedling, even in sandy conditions. |
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| 35. |
If today is saturday . after 71 days which day of week will it be? (don't calcutate for each day ) |
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Answer» cbbbbbbbbbbbbbbbbbbbj Explanation: |
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| 36. |
:))((::::::))Gimme a story on We're made to fly. |
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Answer» Once there lived a king who was very fond of birds. One fine day , the king of the neighboring land gifted him two beautiful birds . The king was overjoyed . He handed over those birds to the royal trainer to be trained . After a few WEEKS , he went to know about the progress . But he was perplexed to know that even though one of the birds was soaring high in the sky , the other bird had still not moved from its branch . This confused the king. The trainer tried many ways to GET the bird leave the branch but the bird wouldn't move. So , the king got it announced that WHOSOEVER will do the needful sill be given a handsome award. Many people came , tried their luck and left without succeeding . At last , a farmer came and boldly announced that he can help achieve the task. The next day , the king saw the other bird flying high in the sky. He IMMEDIATELY CALLED for the farmer and asked him how he did it. The farmer simply replied , "I simply cut the branch on which the bird was sitting". We're all made to fly ! To soar high in life. But instead , we limit ourselves , clinging to the branch of fear. We need to break these boundaries , and rise up high. ___________________________________________________ |
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| 37. |
Column - BDeforestationFossil(iii) Small poxvaccine(iv) Absorption ofcalcium(v) Cosmozoa |
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Answer» what is your QUESTION here |
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| 38. |
Column - A(a) Ancient Greek idea(b) Lucy(C) Sunshine Vitamin(d)Edward Jenner(e)Soil erosion |
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Answer» what to do with this ??? |
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| 39. |
What is the meaning of Xerophthalmia ? |
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Answer» Answer: xerophthalmia is the NAME of a DISEASE. hope it helps. |
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| 40. |
Column - AAncient Greek ideab) LucySunshine VitaminDe(ii)Column - BDeforestationFossilSmall poxvaccineAbsorption ofcalciumCosmozoad) Edward Jenner(iv)e)Soil erosion(v) |
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Answer» Answer: 1. Ancient Greek idea :- Cosmozoa 2. LUCY :- Fossil 3. Sunshine VITAMIN:- Absorption of CALCIUM 4.Edward Jenner :- Small pox vaccine |
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| 41. |
1.Name the acid present in ant sung.What happens when egg shell is added to nitric acid ?Name a salt which does not contain water of crystallization.3.a salt which does not contain water of crystallization |
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Answer» 1.EGG shell is made of calcium carbonate. We know that when calcium carbonate reacts with NITRIC acid, it GIVES carbon dioxide, calcium nitrate and water. Same reaction happens when nitric acid is poured over egg shell. 2.Salts like POTASSIUM Chloride, Barium Sulphate, Sodium Nitrate, Potassium Nitrate do not contain any water of crystallization. It is ALSO known as water of hydration. 3. |
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| 42. |
24. Which of the following has been arranged in order of decreasing bond length ?(A) P-O > C1-0 > S-O(B) P-0 > S-O > Cl-O(C) S-O > C1-0 > P-O(D) C1-0 > S-O >P-OCADDICT cat of statements : |
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Answer» Explanation:because the ∆EN DIFFERENCE is LOWEST in p-o BOND |
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| 44. |
derive an expression for the heat produced in time t in a wire of resistance R which is carrying current |
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Answer» H=i²rt Explanation: h=vit. vit=i²rt. suhshsjh |
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| 46. |
What is matter ? give explain? |
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Answer» Matter is something which occupy space and has some mass. Explanation: |
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| 47. |
- Write down the definition of metal and non-metal |
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Answer» Explanation: A solid material which is typically hard,shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity are known as metals. EXAMPLE- iron, gold, silver, and aluminium, and ALLOYS such as steel Non metal is the ELEMENT that doesn't characteristics of metal including ability to conduct heat or ELECTRICITY, luster or flexibility. Example- Carbon Hope it will HELP u |
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| 48. |
Q1. Liquid metal at room temperature is a)Mercury b)bromine c)sodium d) goldQ2. The metal stored in kerosene a)Phosphorus b)magnesium c)sodium d)zincQ3. The nature of metal oxides is a)Acidic b)basic c)neutral d)all of these |
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Answer» HERE IS YOUR ANSWER :- 1) Mercury 2) sodium 3) acidic HOPE IT HELPS YOU ............✌️ |
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| 49. |
1. Laws of Reflection2. Laws of Refraction3. Define Magnification4. Uses of Concave Mirrors.5. Uses of Convex Mirrorsplzz answer quick |
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Answer» ANGLE of INCIDENTS EQUAL to angle of r reflection |
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| 50. |
Write down the definition of metal and non-metal, |
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Answer» Explanation: Metal- A metal is a material (an element, compound, or alloy) that is typically hard, opaque, SHINY, and has good electrical and thermal conductivity. Metals are generally malleable — that is, they can be hammered or pressed permanently out of shape without breaking or cracking — as well as fusible and ductile. Non Metal- Nonmetals have PROPERTIES opposite those of the metals. The nonmetals are brittle, not malleable or ductile, POOR CONDUCTORS of both HEAT and electricity, and tend to gain electrons in chemical reactions. |
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