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  • 4 answers

Khushi Baliyan 5 years, 1 month ago

Yes Oswal sample paper is best??

Archit @22 5 years, 1 month ago

Best is follow Oswaals paper.

Prabhat Arela 5 years, 1 month ago

You can refer educart or evergreen sample paper

Srishtika Murugan 5 years, 1 month ago

You can refer MTG for more question
  • 1 answers

Prabhat Arela 5 years, 1 month ago

Educart or Evergreen anyone you like
  • 2 answers

Neel Menghani 5 years, 1 month ago

Sorry sorry alkane is 4 and alkyne is 2

Neel Menghani 5 years, 1 month ago

In each case the valency of carbon is 4.
  • 2 answers

Arin Khokhar 5 years, 1 month ago

Thanks dear shreyasree mukerjee

Shreyasree Mukherjee 5 years, 1 month ago

Gandhiji expressed his words "there is enough for everybody's need but not for anybody's greed" according to this Gandhiji said greedy nd selfish man r the root cause for resource depletion at the global level . Accumulation of resources in a few hand due to indiscriminate exploitation of resources has divided the society into rich nd poor that's is haves nd the haves- nots. An equitable distribution of resources has become essential for sustainable quality of life nd global peace
  • 2 answers

Jay Rakecha 5 years, 1 month ago

Pancreas secreates pancreatic juice which contains trypsin for digesting protein and lipase for breaking down emulsified fats.

Jerin Sigi 5 years, 1 month ago

Pancreas secreates pancreatic juice which contains trypsin for digesting protein and lipase for breaking down emulsified fats.
  • 3 answers

Malaika Sharma 5 years ago

?Pg-30-32 of book (V.Imp) ?Why do stars twinkle? ?Why planets donot twinkle? ?Why is the colour of the sky blue? ?Why sun appears red at sunrise and sunset? ?Modern periodic table(V.Imp) ?How is the *** of the child determined? And many more.....

Ayush Singh 5 years, 1 month ago

Tnks Arin khokhar

Arin Khokhar 5 years, 1 month ago

I know from ch 13 that 1=electromagnetic induction 2=set up two stationary coil where the current is induced in coil 2 when current in coil 1 is chargef
  • 1 answers

Ankit Kohli 5 years, 1 month ago

Newton's third law of motion state that action has an equall and opposite reaction. This means that forces always act in pairs . Action and reaction forces are equal and opposite, but they are not balanced forces because they act on different objects so they don't cancel out.
  • 3 answers

Jerin Sigi 5 years, 1 month ago

At noon we know that the sun is overhead and when the sun is overhead , it has less air to travel through. So, scattering is reduced if the distance to be travelled in air is reduced. Therefore, the least amount of scattering occurs which results in the appearance of white light.

Akshita ???? 5 years, 1 month ago

Because blue light wavelength more scatter than yellow light so sun became white.

Navneet Suman 5 years, 1 month ago

Becoz of Least dispersion
  • 2 answers

Srikar B 5 years, 1 month ago

Take the a straw and lime water when the co2 is present then the lime water turns into milky

Akshita ???? 5 years, 1 month ago

For the experiment where CO2​ is given out during respiration, KOH solution or pallets are taken in a test tube and placed in the conical flask KOH absorbs carbon dioxide and prevents it from being utilized by the plant for the process of photosynthesis.
  • 1 answers

Soni ? 5 years, 1 month ago

Regeneration differs from reproduction in the sense that, regeneration can take place from any part of the organism, example cut tail of a lizard. However, reproduction is a process in which new organism is formed through specialized cells .
  • 4 answers

Adithya Dev A 5 years, 1 month ago

Iron, being more reactive than copper, displaces it from its aqueous ionic solution (CuSO4-BLUE) leading to formation of Iron sulphate which is GREEN in colour.

Rohit Verma 5 years, 1 month ago

It is because iron is more reactive than copper that is why it displaces from its solution

Shradha Babar 5 years, 1 month ago

Iron is more reactive than copper and it displaces iron from its solution

Dipanshu Jangra 5 years, 1 month ago

Because iron is more reactive than copper
  • 2 answers

Shradha Babar 5 years, 1 month ago

Voltage is same as only one voltmeter is connected in parallel

Khushi 5 years, 1 month ago

voltage drop is same across both
  • 5 answers

Soni ? 5 years, 1 month ago

Red

Suraj Gupta 5 years, 1 month ago

Red

Isha Gujjanwar 5 years, 1 month ago

Red colour

Arin Khokhar 5 years, 1 month ago

Red

Manav Choudhary 5 years, 1 month ago

Red
  • 2 answers

Dipanshu Jangra 5 years, 1 month ago

Mass of solute /mass of solution multiply by100

Ranvijay Kumar 5 years, 1 month ago

mass percent = (mass of element in 1 mole of compound / mass of 1 mole of compound) x 100. The formula for a solution is: mass percent = (grams of solute / grams of solute plus solvent) x 100. or. mass percent = (grams of solute / grams of solution) x 100.
  • 3 answers

Avanesh Kumar 5 years, 1 month ago

V=u+at

Dipanshu Jangra 5 years, 1 month ago

If any object is in motion it will remain in motion and if any object is in rest it will remain in rest

Ranvijay Kumar 5 years, 1 month ago

Class 9 Ka hai
  • 5 answers

Abhijot Bedi 5 years, 1 month ago

Pink...as soap solution is basic and phenolphthalein turns pink in basic and colourless in acid

Soni ? 5 years, 1 month ago

Pink

Rohit Mall 5 years, 1 month ago

Pink

Ranvijay Kumar 5 years, 1 month ago

Pink

Sanal Solomon 5 years, 1 month ago

In basic solutions, the colour of phenolphthalein will be Pink.
  • 3 answers

Adithya Dev A 5 years, 1 month ago

During formation of SATURATED compounds, only one pair of ELECTRONS is shared between the atoms. So, they have SINGLE bond.

Ranvijay Kumar 5 years, 1 month ago

Because they are the simplest class of hydrocarbon . And satisfied by single bond this is reason

Saumya Pataliya 5 years, 1 month ago

Because they are the simplest class of hydrocarbon . And satisfied by single bond
  • 3 answers

Eva Kandoth 5 years, 1 month ago

The three events that occur during the process of photosynthesis are: (i) Absorption of light energy by chlorophyll. (ii) Conversion of light energy to chemical energy and splitting of water molecules into hydrogen and oxygen. (iii) Reduction of carbon dioxide to carbohydrates No, these steps don't take place immediately after one they take their own time

Aditi Verma 9 months, 1 week ago

The three events that occur during the process of photosynthesis are: (i) Absorption of light energy by chlorophyll. (ii) Conversion of light energy to chemical energy and splitting of water molecules into hydrogen and oxygen. (iii) Reduction of carbon dioxide to carbohydrates

Sonam Chouhan 9 months, 1 week ago

Lol
  • 6 answers

Dipanshu Jangra 5 years, 1 month ago

Processes which are used by various organisms to sustain their life.

Dipanshu Jangra 5 years, 1 month ago

Processes which are used by various organisms to sustain their life.

Tarun Garg 5 years, 1 month ago

The processes which take place throughout our life and are necessary for our survival are called life processes

Ranvijay Kumar 5 years, 1 month ago

Processes that are necessary to live and survive are known as life process.

Aditi Verma 5 years, 1 month ago

Processes that are necessary to live and survive are known as life process. EXAMPLE - respiration, digestion, excretion, control and coordination, nutrition etc..

Praful Singh 5 years, 1 month ago

Processes that are necessary to live and survive are known as life process.
  • 2 answers

Aditi Verma 5 years, 1 month ago

It causes 1)climate change, 2) desertification, 3)soil erosion, 4)fewer crops, 5)flooding, 6) increased greenhouse gases in the atmosphere, 7)a host of problems for indigenous people.

Arpit Pandey 5 years, 1 month ago

Mandal explanation
  • 1 answers

Neel Menghani 5 years, 1 month ago

Class 8 ka hai
  • 1 answers

Nadia Jarin 5 years, 1 month ago

Respiration is the oxidation of respiratory substrates (mainly glucose) in the cells resulting in the release of carbon dioxide and energy. It involves release of energy in the form of ATP. The initial steps of glucose break down occurs in the cytoplasm and results in production of pyruvic acid. This process is called glycolysis or E. M. P. Pathway. One molecule of glucose breaks down to produce two molecules of pyruvic acid. Each pyruvic acid molecule has three carbon atoms. This pathway doesn't require oxygen. Aerobic respiration occurs in the presence of O2 where O2 is utilised. Glucose is completely broken down to release end products in the form of CO2 and water. It takes place in cytoplasm and mitochondria. Anaerobic respiration occurs in the cytoplasm in the absence of O2. Glucose is incompletely oxidised to release the end products in the form of ethyl alcohol and water (in plant cells and yeast) and lactic acid (in animal cells).
  • 2 answers

Shradha Babar 5 years, 1 month ago

Bcoz alloy has a higher melting point and so it doesn't melt Evan at higher temperature easily

Nishi.S Patwari 5 years, 1 month ago

Coils of electric toasters and electric irons made of an alloy rather than a pure metal due to the following reasons: The resistivity of an alloy is higher than the pure metal. ... Alloy does not melt readily and get deformed. Alloys have a low-temperature coefficient of resistance.
  • 0 answers
  • 2 answers

Himanshu Verma 5 years, 1 month ago

For the law of conservation of mass

Sarangi Jayakumar 5 years, 1 month ago

By law of conservation of mass
  • 4 answers

Nishi.S Patwari 5 years, 1 month ago

Alkalis can be defined as Bases that are soluble in water are called Alkalis. example : Sodium hydroxide, Potassium hydroxide,etc .

Sarangi Jayakumar 5 years, 1 month ago

Bases that is soluble in water Eg. NaOH

Muskan 2005 5 years, 1 month ago

Water soluble bases are called Alkalis. Example :- NaOH

Vaishnavi . 5 years, 1 month ago

Bases that are soluble in water. Example:- sodium hydroxide

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