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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.

7501.

What are the chemicals used to avoid rancidity

Answer» (1)By adding anti-oxidants[eg:Natural anti-oxidants are Vitamin C & E, Synthetic anti-oxidants are BHA(Butylated Hydroxy Anisole) & BHT( " " Toluene)(2)By replacing air by NitrogenThese are only some chemicals ,there is more methods to prevent rancidity!!!
antioxidents...
7502.

How is food is transported in plants?

Answer» through phloem ..
7503.

Give an example of combination reaction with exothermic process

Answer» Okk
Koi baat nahi maine bhi seriously kaha hai
Mai majak nahi ker rahi
We know she is joking tum tenson mat lo
Aisaa majak nhi krna chahiye ??
No I am serious
I know u r joking
Thanku u r so intelligent himanshu
Cao+ h2o = caoh2
7504.

What is calcination and roasting

Answer» Obtaining of metal by heating in the presence. Of o2 is roasting and in abscence of o2 is. Calcination
7505.

How use of fuse wire protect electrical appliances

Answer» Fuse wire has very low melting point. So, it breaks when high current flows.
7506.

Why peepal tree releases oxygen 24hrs???

Answer»
7507.

What process is known as transpiration in plant?

Answer» Thanks to all
Yes right
The process of loss of water in the form of vapour by plants through stomata is known as transpirtion.
Releasing of. Water through evaporation
The loss of water in the form of a vapour from the aerial parts of the plant ( leaves ) is known as transpiration it takes place with the help of stomata
transpirational pull
7508.

Why voltmeter is connected in parallel

Answer» Voltmeter is connected in parallel because the potential difference between two points at same line is zero hence the voltmeter is connected in parallel
Voltmeter have high resistance so if we connect it in series it may draw more current so it is advised to connect it in parallel which reduces the effective resistance.
To measure the potential difference of resistor between two points of a conductor
7509.

One negative effect of affluent life style of few persons on the environment

Answer»
7510.

what is nuclear fission and fussion

Answer» Simply atom bomb and hydrogen bomb
And energy is release
Cosmic rays is passed through the nucleus and divide the nucleas
Fusion means joining or coming together and Fission means splitting off
Both fission and fusion are nuclear reactions that produce energy, but the applications are not the same. Fission is the splitting of a heavy, unstable nucleus into two lighter nuclei, and fusion is the process where two light nuclei combine together releasing vast amounts of energy
7511.

HCl react with Caco3

Answer» CaCO3 + 2HCL implies that CaCl2 + H2O + CO2
Cacl2 + CO2+H2O
Cacl2+h2o+co2
CaCl2....CO2...H2O
7512.

Explain why rate of photosynthesis in plant is low?Both at higher and lower temperature

Answer»
7513.

how can we generate energy by uranium and thorium

Answer» By nuclear fission and nuclear fusion
7514.

difference between sperm and eggs

Answer» cells. They are no more than a nucleus with a small amount of cytoplasm, some mitochondria (the energy suppliers of the cell) and a long tail. ... The difference between ovum and sperm remains enormous. Egg cell and sperm are each others opposite.
Sperm is a male\'s gametes and egg is female gametes
Sperm are produced by male and egg r by female
7515.

If the length of a wire of resistance 2 ohm is doubled find the resistance of new wire?

Answer» No bro
4 ohm
7516.

What is metallurgy? Write the steps?

Answer»
7517.

What is adrenaline

Answer» Regulates heartbeat and oxygen supply
? problem
????
What type of emergency
regulation of blood pressure , heartbeat , catbohydrate metabolism...
It\'s emergency hormone
Functio
secreated by adrenal gland...
Hormones secreted at the Time of emergency..
Hormone
7518.

What is a site of releasing hormone in human being

Answer» In endocrine glands
Blood
Gland
7519.

What is the boiling point of ethanol?

Answer» no need to say thnks...
8000k
78.37
Thanks
351k...
Bhul gaya
7520.

What is Natural Selection? What is genetic drift? What is Speciation?

Answer» Natural selection is the advantage provided by nature.genetic drift is a sudden genetic change.speciation is the process by which new species develop from existing species..
Natural selection operates through differential reproduction due to which useful genetic variability spreads over more and more member of the population
Origin of new species from pre existing species is called speciation.
Genetic drift-sudden change in Gene\'s frequency..
Genetic drift is the random change in the gene frequency occurring by chance fluctuations
7521.

What is electro magnet??????

Answer» the magnet which is formed by electricity . to keep inside a solenoid and pass current to it so inside solenoid force of magnet is strong and take soft iron in it the magnet formed is electromagnet
A solenoid could that gets magnetised.
7522.

What js fallopian tube and what is the the work of this tube in human body?

Answer»
7523.

What do you understand by geotropism ?

Answer» Growth of plant with respect to earth eg- stem grow against and roots grow towards
Growth of plant in response to soil or root growhing
Plant growth towards the earth i.e. growth of roots in response to gravity
7524.

Tesla kiski S. I unit ha

Answer» Magnetic field &smallest unit for samll value is guass.
magnetic filed
Magnetic fluks density
I think flux ki
Magnetic field ki
7525.

Why NaOH is strong base

Answer» NaOH is a strong base because it and Ionises completely in the water and produces more Hydroxide ions
It itself ionised in water &produce a large amount of negative ions in it.
Because its pH value is very low i.e.14
7526.

How many chambers in heart ?

Answer» 4
four
In humans, 4 chambers
4 chambers...
7527.

How do two isolated subpopulation of a species become two different species?

Answer» This is a factor causing Speciation.When a group of species become geographically apart ,they become genetically isolated as well.Now the progeny produced by each of the species would be completely different after millions of years.The progeny of one group would not be able to breed with the progeny of another group as the reproductive isolation between these groups for a long time lead to the development of two new different species.
If anybody knows this answer so please help me.
7528.

Why voltmeter connected in parallel

Answer» This is necessary because objects in parallel experience the same potential difference
bcoz....age pta nhi..
7529.

What is spermatogensis

Answer» Process by which spermatzoa is produced by mitosis or meiosis
formation of sperms...
7530.

Which type of fluid present in the bony box containing brain !???

Answer» Cerebrospinal fluid
Cerebrose spinal fluid
7531.

Friends oswal ke question banks kaise hai??

Answer» Chodana ie thi
I\'ve bought it hope so uns3 questionsaaja
Its very good for practice
Sorry good
Paper ke hai.
7532.

Calculate the ph of the solution having 0.001 mol of hydrochloric acid in 1L of solution.

Answer» Use logarithm... high lvl hai
No wrong ?
Neutral
7533.

How you all are preparing your science paper? Give me tips to revise biology? Please

Answer» OK thanks for your answers
Bhai subh bio yaad karo subh hmara dimmag ka yaad hua long time tak rahta h din me maths karo kyunku din me hmara dimaag jadaprocess me rahta h
Read textbook full tarolly
Prepare notes
Biology is so simple just read Ncert and if you want to study in detail I refer s.chand.
Biology is very simple.
7534.

Gibberlins responsible for what ??

Answer» To promote plant growth
Gibberlins promote the growth of stem.
Where it is stored maximum
Controls growth.
Breaking of dormancy
stimulate srem elongation, seed germination, n foowers , helps in growth of stem...
Growth of stem
7535.

What is islets of langerhans

Answer» Endocrine part of pancreas
Wrong
Hormone
7536.

When dry pH is dipped into NaOH, water, orange juice, dil HCl what happens

Answer»
7537.

What is synthetic detergent? What r the advantages and disadvantages of it

Answer» Artificial detergent (man made) they work in both water hard and soft. Disadvantage they create pollution
7538.

Why Mendeleev choose oxygen and hydrogenBut fluorine and other element and. More reactive

Answer» Ya smriti is right they have a common way of reaction with grouped elements
Because they react with all elements
Q ajeeb h
7539.

Why does carbon atom forms a large number of compounds

Answer» Thanks uh
Bcoz carbon have a property of forming big compounds known as catenation????
Ya she is right
Due to catanation property nd tetravalency,multiplebond
7540.

How to make heart diagram ??????

Answer» Control ur feelings
By feeling ?
Acha mujhe to pta hi nh itha.
By pencil ?
7541.

What are receptors ??write it\'s function.

Answer» The organ which respond toward stimuli
7542.

Why DNA copying is important

Answer» For maintenance of body design and its feature allow organism to survive
For transfer of character from one generation to other
7543.

How much percentage is required for getting PCM in class 11 for class 10 students ???

Answer» PCM means Physics, Chemistry and Maths
Pcm mean
70% to 85% will be good for getting PCM
Above 95
100%
7544.

How small intestine design to absorb digested food

Answer» It has finger like projection which called villi. It provide maximum area to absorb the food
And*ans
Meine yhi likha tha exam mein sir ne kaat diya mera and.
They have villis on their surfaces
7545.

Why convex lense converge

Answer» Because it form they converge rays
Nature of material
7546.

calsination

Answer» The process in which carbonated ore is heated in the absence of air
The process in which carbonate ores are changed into oxides by heating strongly in limited air.
The process of changing carbonate oxides into oxide
7547.

What was the draw back of Dobereiner traids ?

Answer» Dobereiner traid could not classify all the element that discover at the time it could classify only three pair
At that time which elements are present is applicable but as new elements discovered it is not applicable for newly discovered elements
7548.

What happens when ZnCO3 is heated in the absence of air ? Give the relevant equation.

Answer» It will occurs calcination reaction ZnCO3 => ZnO + CO2
7549.

How we find magnetic field

Answer» Can also find by iron fillingBy sprincle iron filling on a desk an then put a megnet than all the iron filling will be arrengedFrom North to South
Sorry Tight*-Right
In a straight current carrying conductor magnetic field can be determined by Tight hand thumb rule.
7550.

Pls sir life metal and non metal samja dho

Answer» Kya samajhna hai isme.kaun sa topic.