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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.

66701.

heridity and evolution

Answer» Heridity most hardest topic
66702.

What is trpphic level

Answer» The various steps in the food chain at which transfer of food or energy occurs.
66703.

Name a device which converts mechanical energy into electrical energy

Answer» generator
Genrator
Why do more people pefer to use condoms? What is the principle behind use of condoms
Generator
66704.

Which has maximum fluidity 1.kerosene 2.ether 3.diesel

Answer» Diesel
66705.

Please tell me all the general formula from chapter carbon and its compound please please ??

Answer» Alkane
Alkane- CnH2n+2Alkine- CnH2nAlkyn- CnH2n-2
Ch4 is the general formula
66706.

Give an experiment with water to show the reactivity of metals Al, Ca, Mg in incresing order.

Answer» 2Al + 3H2O Gives---- Al2O3 + 3H2
66707.

What happens when acetic acid is mixed to sodium hydrogen carbonate?

Answer» CH3COOH + NaHCO3 : CH3COONa + H2O + CO2
CH3COOH +NA2HCO3 : CH3COOHNA + CO2 +H2O
Can you please give the equation?
Carbon dioxide gas is evolved
66708.

Explain working of A.C Dynmo?

Answer»
66709.

Name a substance whose resistance remain unchanged when temperature is increased???

Answer» Some alloys like nichrome
Any insulater like wood.
66710.

What is the important question of oswal

Answer» All of them are important
Sorry but mere pass oswal nAhi hai
66711.

name 3 Allotropic form of carbon

Answer» 1- diamond2- graphite and3- buckminsterfullerene
Diamond, graphite and Buckminster fullerene.
Dimond , graphite and Buckminsterfullerene
1:diamond2:graphite3:flurene
66712.

What are the chemical properties of metals and non metals????

Answer» Metals reacts with water and acid but non metals do not react with water and acid. Metals form ionic hydride and chloride but non metals form covalent hydride and chloride. Metals form basic oxide but non metals form acidic or neutral oxide.
66713.

Fairy light split into seven colour when passed through glass prism

Answer»
66714.

Write the uses , preparation , chemical properties of ethanoic acid

Answer» Hope this will help you
When ethanol is react with alcohol it forms ethanoic acid chemical properties of ethanoic acid is esterification when ethanoic acid react with alcohol it give Ester it is it is used for the preservation of the pickle
66715.

Questions paper of 2017

Answer» U can get it frm this app itself
66716.

How water is transported upwards in plants

Answer» Due to suction pressure and assent of sap through tracheids amd vessels of xylem
This is the process by which the translocation of water and minerals occurs in a plant by xylem and phloem(tracheary elements ) , against all the gravitational force , where water ascends upwards
66717.

what are functions of plant hormone?

Answer» Helps in cell elongation and cell differentiation and also helps in growth of the plant
#It helps in growth of plant.....# It helps in cell division...#it helps in growth of root and shoot.....#It helps in dormancy.....#It helps to produce fruit...
66718.

Why is an aqueous solution of ammoniun chloride acidic in nature

Answer» Because it is made from an strong acid HCL and a weak Base NH4OH
66719.

Can u suggest me some important ques in Chemistryy

Answer» Plzzz
Sooo the matter is how should I practice soo that I may remember it for a long tym??
That I have done..but in my preboards questions didn\'t came frm only ncert and they were very different from ncert....
Do only ncert all questions are important
All the chemical reactions.
66720.

What\'s the angle of reflection if the light ray incident on the surface normally? ?

Answer» Angle of reflection is meant that the angle between normal and reflected ray so here theincident ray is perp. to the surface it means reflected ray will also be like that.there4 normal and reflected ray are coincident so angle will be 0 degrees
90 degree
Its zero....0
I feel its 90 bcoz normal is 90 degree n ray is incident normally along with angle of reflection is equal to angle of incidence
Its 0 may be
66721.

Can anyone plz tell me frm where do i practice numericals related to refractive index???

Answer» From this site
66722.

What is joules law of heating?

Answer» Thank you for both
Heat produced in a resistor is 1) directly proportional to square of current 2) directly proportional to resistance 3) directly proportional to time.
Heat produced in a resistor and its depend upon :- 1) it is directly proportional to square of current2) it\'s directly proportional to resistance3) it is directly proportional to time
66723.

Explain for beryllium the group number and period number is same why

Answer»
66724.

Which colour is shown ,,,, when copper sulphate mix with water

Answer» When copper Is mixed vid water... It shows blue colour
66725.

Why electric wire made are of copper?

Answer» Copper is a good conductor of electricity but Nor from silver , we can not use silver because it has high price and it is use in only switch board
Copper is a good conductor of electricity.It is highly ductile..It is readily available due to this it is not much expensive.
Due to less resistence and high conductivity
It has low resistance and do not burn easily
And good conductor of electricity
Because it has very low resistance.
Because copper has high melting point and it is not burn easily.
66726.

What is testeron ?

Answer» It is a male *** hormone and it also regulates secondary sexual characters in male
No prblm
Oh!!! Sorry..It\'s testosterone
Wrong spelling..its tetesterone
Its is male hormone....
66727.

What is the colour of leaf just before the starch test

Answer» Pale yellow
The green portion before the starch test is pale yellow.
Green
Pale yellow
Pale yellow because of boiling of leave to take out the chlorophyll from the leave for starch test
66728.

What is AC and DC Current???

Answer» AC changes its direction with time .DC does not changes its direction with time and flows in only one direction
I want its full explanation not its full form...so plz explain it!!
Ac is alternate current and dc was direct current
66729.

Why are sodium and chlorine placed in the same period in the modern periodic table

Answer» Because they are having same no. of shell in their electronic configuration Na 2,8,1 and Cl 2,8,7 and no. of shells is equal to no. of period thus they have same period 3
because it had same no. of shells as k l m
66730.

Can Jasmine flower contains both stamen and carpel?

Answer» No
Noo
No
66731.

How to refining of metaks

Answer»
66732.

what is acid rain??

Answer» Harmful gasses like methane mixed with water droplets present in air which causes acid rain that is the rain containing toxic Gases. It is harmful for crops and also damages monuments.
Acid rain is a rain which harmful to trees crops building and aquatic animals
66733.

what is greenhouse effect??

Answer»
66734.

Diiferentiate between soap and detergent

Answer» 1.Soap do not react with hard water while detergent react with hard water.2.Soap do not create any pollution problem while detergent cause pollution.3.soap are cheap in cost while detergent are expencive
Soap is biodegradable whereas detergent non biodegradable
66735.

What is efflorescence give an example

Answer» Efflorescence is a spontaneous loss of water by a hydrated salt which occurs when aqueous vapour pressure is less than the atmospheric water vapour content
66736.

What is anarobic respiration

Answer» The respiration takes place without oxygen
The respiration take place in absence or lack of oxygen with less ATP produce
The respiration takes place in the absence of oxygen .
The respiration which takes place in the absence of oxygen
The respiration which take place in the absence of oxygen
The respiration that take place in absence of oxygen
66737.

Who were colons

Answer» The French people who lived in Vietnam were called or known as \' colons\'.
66738.

What is main difference between ac current and DC current

Answer» ac current means alternate current which is found in electricity and the dc current is direct current which is found in our battery
66739.

What is ethanol and ethanoic acid

Answer» dynamic ki jagah carboxylic acid
the ethanol acid is used in alcohol for ex c2h5oh and the dynamic acid is used in carboxylic acid for ex ch3cooh
*ETHANOL : Ethanol is a carbon compound with molecular formula C2H5OH and is an alcohol .It belongs to the alcoholic group.*ETHANOIC ACID : Ethanoic acid is a carbon compound with molecular formula CH3COOH and is an acid.It belongs to carboxylic acid group.
66740.

Gap between two neuron is called

Answer» Synapse
It\'s called synapse.
synapse
Synapse
66741.

Why do we need to conserve energy ???

Answer» Now time is 4:31
It is important to conserve energy resources because once we use them all then it will become difficult to find them or they are completely exhausted and it becomes history for us that once we used. The conventional energy resources like fossil fuel (coal, petroleum) are depleted completely it is difficult to find other sources or may not be sufficient as may require. The excessive use not only impacts the economy of countries but also environment thus energy resources are directly relate to us.
66742.

Difference between edocrine and exocrine gland

Answer» Endocrine related to hormones or chemical coordination, less efficient.On the other hand exocrine related to electrical or impulse coordination, more efficient.
66743.

C2H6 formula name

Answer» Ethane??
Ethane!!!!?????
Ethane
66744.

What is the effect of adrenal gland on our body

Answer» During the time of fight or fright situation.. Adrenal glands come in act they...1) increase blood pressure 2) reduce blood in skin 3) areas like stomach,liver and other organs get less blood 4) more blood is supplied to striated muscles so to give quick response
High blood pressure and lack of energy in our body.....
1...High blood pressure.....2Muscle and bone weakness...
66745.

The substance that is reduced in the following reaction isFe + CuSO4?= FeSO4+ Cu

Answer» Copper
Fe+CuSO4----------->FeSO4+CuBut in FeSO4+Cu-----------> ×
66746.

Any important chapter in biology?

Answer» Heredity and evolution
All are important.
66747.

Why are stars twinkle

Answer» Continuously changing atmosphere refract light from the stars by different amounts from one movement to the other. When atmosphere refracts more starlight towards us,the stars appear to be bright and when the atmosphere refracts less starlight,then the stars appear to be dim.
66748.

Define:(i) Recycling(ii) Sustainable development(iii) Chipko Andolan3Marks

Answer» (i) Recycling : The act of processing used or abandoned materials for creating new products.\xa0(ii) Sustainable development : A pattern of resources used for obtaining economic and social growth of the present generation while preserving the resources for the needs of future generations.\xa0(iii) Chipko Andolan : A grass root level movement in which the villagers hugged the forest trees and prevented their mass felling by the contractors.\xa0
(i) Recycling: This process which can we collecting and changing the substances and it can be used again.
@ Recycling is the process of using the product by recycling n recycling .@ Development should be in such a way that development of today doesnt harness the needs of future generation .@ This andolan was started in order to protect the trees from felling off by the industralists ..
66749.

Carbomino hemoglobin

Answer»
66750.

Write any three advantages of vegetative propagation.

Answer» Advantages:(i) Bear flowers and fruits earlier than those produced from seeds.(ii) Plants without seeds can also reproduce.(iii) Genetically similar to the parent plant.(iv) The plants that cannot produce viable seeds such as banana, seedless grapes and oranges, etc, can be easily grown by vegetative propagation.
@ No genectic difference @ Plants grows faster by this process @ Parent r similar from they progenies