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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 38451. |
What is classification? What is the need for classification? |
| Answer» | |
| 38452. |
What is triple fusion? |
| Answer» | |
| 38453. |
What is double fertilisation? |
| Answer» When the pollen grain reaches to the stigma of carpel then it form a pollen tube which extent downward , through style it reaches ovary and then enters to ovule through micropileThis pollen tube then bust and one male gamete fused with egg to form zygote and other male gamete fused with two pollen nuclie to form triploid cell called endosperm ( this fussion is called triple fission ) and this phenomena is called double fertilisation... | |
| 38454. |
Define principle focus |
| Answer» The point on the principal axis where all the ray of the light intersects each other is know as principal focus | |
| 38455. |
Which part of amoebahels in ingestion and digestion of food |
| Answer» | |
| 38456. |
Lizard ki puch karne ke bad vapash kesa nikaal jathi ha |
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Answer» Regenerate Regenate |
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| 38457. |
Which compound is present in our tear |
| Answer» Sodium chloride | |
| 38458. |
How acid rain occur |
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Answer» Bcoz of the presence of nitrogen oxide and sulphur dioxide......??????????? It is due to the bad partical present in the atmosphere |
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| 38459. |
Differentiate betwwen allotropes and isomers in five points ? |
| Answer» Carban is non metal and other form of caban allotropes | |
| 38460. |
Which Chemical compound present in fruit |
| Answer» Stach(caabohydrate | |
| 38461. |
What signs of v ,u and f are used in case of refration |
| Answer» V=image distance, u=object distance, f=focal length | |
| 38462. |
Hey frnds, tum sb ka science syllabus complete ho gya? |
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Answer» Song h Nhiii |
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| 38463. |
What is holozoic nutrition? |
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Answer» It is a nutrition in which organisms take food directly and then digests and absorbs it It is a nutrition in which organisms take food |
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| 38464. |
Define universal indicators |
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Answer» To judge how strong a given acid or base is, a universal indicator is used, which is a mixture of several indicators. Also known as litmus paper . |
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| 38465. |
What is a salt |
| Answer» NaCL | |
| 38466. |
what is saponification ? |
| Answer» | |
| 38467. |
Diff BW homologous and analogous |
| Answer» | |
| 38468. |
Name the first member of ketone. |
| Answer» Propanone | |
| 38469. |
Give sample paper according to 2018 |
| Answer» | |
| 38470. |
Give an example of negative chemotropism. |
| Answer» | |
| 38471. |
Which organism respire by two methods? . |
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Answer» Most frogs and toads breathe through their skin through a process called cutaneous gas exchange, but they also have lungs with which they breathe. During the time they stay submerged under water or buried in soil they only breathe through their skin. Frog. by skin and lungs |
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| 38472. |
What is the actual meaning of the word \'PHYSICS\'? |
| Answer» Physics means nature and natural phenomena occurring | |
| 38473. |
What is the Function of neuron? |
| Answer» Neuron are specialised for conducting information through electrical impulses from one part of the body to another. | |
| 38474. |
What is hydrogenation and what is its industrial application |
| Answer» Hydrogenation is a reaction in which unsaturated hydrocarbons add hydrogen in the presence of catalysts to give saturated hydrocarbons. It\'s Industrial applications is that it is used to prepare vegetable ghee from vegetable oils. | |
| 38475. |
What are conventional sources of energy |
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Answer» Those sources of energy which takes very long time to renew itself is known as conventional sources of energy. Generally those resources which are obtained with the help of new technology and found limited in nature |
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| 38476. |
Why do organism reproduce |
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Answer» To maintain life process ,,to continue the life of species on the earth,, survival of species on the earth Organism reproduce by two methods sexual and asexual |
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| 38477. |
On what factors does the lateral displacement of glass slab depends ? |
| Answer» Refractive index, thickness, angle of incidence | |
| 38478. |
What do you mean by decomposition reaction ? Give some examples with balanced equation . |
| Answer» It is a reverse of combination reaction in which a single reactant breaks down to give more than 1 product. E.g- Ca Co3 when heated gives out Co2 and CaO. | |
| 38479. |
Why carbon do not form C++++ ? |
| Answer» To form C++++ carbon need more force of attraction to lose four electrons having six protons | |
| 38480. |
Why stigma fall down after fertilization in flowers |
| Answer» | |
| 38481. |
Why carbon compound have low melting point and boiling point |
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Answer» As the carbon compound forms covalent bond and it\'s force of action is less As carbon makes covalent bonds instead of ionic bonds. In comparison to ionic bonds, covalent bonds have low melting and boiling points. |
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| 38482. |
Why graphite is good conductor of electricity |
| Answer» Bcs it has a free electron which helps to free flow of ions.in the circuit | |
| 38483. |
Why there is large amount of carbon compound found? |
| Answer» It is due to their unique property of self linking and also due to its tetravalency so That it forms covalent bond also there self linking property is known as catenation so you can also write catenation on place of self linking | |
| 38484. |
What are characteristics of homologous series |
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Answer» All the members of homologous series can be represented by same general formula. Two adjacent homologous series differ by CH2 .two adjacent homologous series is differ by 14 molecular mass. Every functional group have there own homologous series and therefore there chemicals properties are similar bt there physical properties are different bcoz of increasing atomic mass and size after every step also bcoz there is difference of ch2 it means increase of ch2 atoms after every step All the compound of a homologous series show similar chemical properties : |
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| 38485. |
Why water is wet ? |
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Answer» *in Because it is liquid state |
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| 38486. |
what is auxon |
| Answer» inert gas | |
| 38487. |
What is work |
| Answer» | |
| 38488. |
Why does ray passing through the optical centre not deviate |
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Answer» Because rays from centre is perpendicular to in mirror a line passing through is normal incident ray |
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| 38489. |
Sign convention of lenses |
| Answer» sing convention of lenses is determined according to direction of the incident ray we know that all the measurements takes from pole in case of convex lensan object placed in front of lens then it take to be negative | |
| 38490. |
What are allotrops? |
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Answer» when an element exist in two or more different form in the same physical state Same elemwnts found in different forms in nature and their chemical properties is same and physical properties differ by each other are know as allotropes |
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| 38491. |
What is self refraction |
| Answer» | |
| 38492. |
What is gene ? |
| Answer» Gene is unit of inheritance, they are present on chromosomes and trasferr from one generation to another . | |
| 38493. |
Life span of RBC |
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Answer» 120 120 days |
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| 38494. |
What is the general formula of carboxlic acid. |
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Answer» The general molecular formula for carboxylic acids is CnH2n+1COOH. COOH |
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| 38495. |
How do we study in physics?? |
| Answer» By reading with mouth | |
| 38496. |
How do we study in biology |
| Answer» By reading with mouth | |
| 38497. |
Balance |
| Answer» | |
| 38498. |
What are co valent bond |
| Answer» Carbon shares with electron with carbon or other element forming co valent bond | |
| 38499. |
What is the function of hcl |
| Answer» To provide acidic medium for the functioning of pepsin and to kill the germs and bacteria in the stomach | |
| 38500. |
How many chromosomes are present in human body |
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Answer» 23 pairs, 22 pairs are autosomes and one pair is *** chromosome 23pairs of chromosomes are there in himan body...22pairs are autosomes and 1pair is *** chromosomes |
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