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    • Posted by Tushar Sindhi 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Riya Shree Gupta 6 years, 3 months ago

    Covalant compound are formed by mutual sharing of electrons between two atoms of non- metals. Eg:-H^2

    2Thank You

    Yogita Ingle 6 years, 3 months ago

    A covalent bond is formed between two non-metals that have similar electronegativities. Neither atom is "strong" enough to attract electrons from the other. For stabilization, they share their electrons from outer molecular orbit with others . Covalent bonding is a form of chemical bonding between two non metallic atoms which is characterized by the sharing of pairs of electrons between atoms and other covalent bonds.

    Example: Methane (CH4), Hydro Chloric acid (HCl)

    2Thank You

    ANSWER

    • Posted by Tushar Sindhi 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Yogita Ingle 6 years, 3 months ago

    The compounds in solid, liquid or gaseous state which contain carbon in its molecule are known as organic compounds. There are a large number of organic compounds and therefore a proper systematic classification was required. Organic compounds can be broadly classified as acyclic (open chain) or cyclic (closed chain

    2Thank You

    Shreya ... 6 years, 3 months ago

    Compounds of carbon are known as organic compounds.

    5Thank You

    ANSWER

    • Posted by ? Queen ? 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Yogita Ingle 6 years, 3 months ago

    Water conservation is necessary because of:

    1. Rainwater serves as a boon for us. So we can save the rainwater for our daily needs.
    2. Prevents water pollution.
    3. Demand for water is needed in agricultural fields, animal farms etc.
    4. Urban and industrial areas require a higher amount of water than rural areas.
    5. Increases energy savings and generate efficient use of water reserves.

    2Thank You

    ? Queen ? 6 years, 3 months ago

    Is water **conservation

    1Thank You

    ANSWER

    • Posted by ? Queen ? 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Yogita Ingle 6 years, 3 months ago

    Water is polluted with acidic wastes.

    2Thank You

    Shreya ... 6 years, 3 months ago

    River water is acidic showing that it is polluted by acids.

    6Thank You

    ANSWER

    • Posted by Nitin Yadav 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Shreya ... 6 years, 3 months ago

    A lens which is thick at centre but thinner at the edges is known as convex lens.

    5Thank You

    ANSWER

    • Posted by ? Queen ? 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 4 answers

    Ankesh ..Now I Am Fully Ready?? 6 years, 3 months ago

    Thanks sis

    2Thank You

    ? Queen ? 6 years, 3 months ago

    Faltu answer/ questions nahi pls.....(aur vo thanks mistake se ho gta tha?)

    2Thank You

    Yogita Ingle 6 years, 3 months ago

    The most common practice of recharging ground water in both rural and urban areas is rain water harvesting.

    1Thank You

    Shreya ... 6 years, 3 months ago

    Rainwater harvesting

    4Thank You

    ANSWER

    • Posted by Aim Bhardwaj 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Shreya ... 6 years, 3 months ago

    Villi are the finger like projections, present in the wall of small intestine. Villi increase surface area of small intestine which helps in absorbing more food.

    3Thank You

    ANSWER

    • Posted by Esha Thorat 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Aim Bhardwaj 6 years, 3 months ago

    A forest is an an area over which tress grow naturally is called as forest and place where both plant and animal live is known as wildlife

    1Thank You

    Abhinav ? 6 years, 3 months ago

    Forest is a large area of land covered with trees, herbs, shrubs..etc..

    1Thank You

    ANSWER

    • Posted by Shyam Kumar 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Abhinav ? 6 years, 3 months ago

    Any chromosome that is not a *** chromosome can be referred as somatic chromosome.

    3Thank You

    ANSWER

    • Posted by Arya Singh 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Khushbu Garg 6 years, 3 months ago

    a slowing of time in accordance with the theory of relativity that occurs in a system in motion relative to an outside observer and that becomes apparent especially as the speed of the system approaches that of ligh

    1Thank You

    ANSWER

    • Posted by Uday Choubey 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Yogita Ingle 6 years, 3 months ago

    A solar cell is a device which converts solar energy directly into electricity. A group of solar cells is called a solar cell panel. It consists of a large number of solar cells joined together in a definite pattern. It provides a lot of electric energy required by artificial satellites, water pumps, street lighting, etc. For joining the various solar cells in a solar panel, silver wires are used because silver metal is the best conductor of electricity having a very low resistance and which also increases efficiency.

    1Thank You

    ANSWER

    • Posted by Lucifer ? Morningstar? 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 3 answers

    Yogita Ingle 6 years, 3 months ago

    SINGLE BOND

    When two atoms share one electron pair between each other, then they are said to be bonded by single covalent bond, denoted by single dash joining the atoms. For the formation of this bond, presence of an atom with single valency is required. The atoms with single valencies are halogens and hydrogen.

    e.g. – Cl2, HCl, NH3 etc.

    DOUBLE BOND

    When two atoms share two electron pair between each other, they are said to be bonded by double covalent bond, denoted by double dash joining the atoms. The atoms with double valency are chalcogens or the oxygen family.
    E.g.:- O2, CO2 etc.

    TRIPLE BOND

    When two atoms share three electron pair between each other, they are said to be bonded by triple covalent bond. Triple bond is denoted by three dash joining the atoms. The atoms with triple valency are pnictogen or the nitrogen family.

    E.g.: N2 ,  C2H2­ etc.

    1Thank You

    Aditi Sharma 6 years, 3 months ago

    They show whether compound is belong to alkane group or alkene or alkyne group

    0Thank You

    Priyanshu Kumar 6 years, 3 months ago

    It represents the number of shared pair of electrons ÷ in single bond 1 pair ....in double bond 2pair and in triple bond 3 pairs of electrons are shared

    2Thank You

    ANSWER

    • Posted by Lucifer ? Morningstar? 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 1 answers

    ? Queen ? 6 years, 3 months ago

    Chemical bonding refers to the formation of chemical bond b/w two or more atoms , molecules , or ions to give rise to a chemical compound.

    2Thank You

    ANSWER

    • Posted by Ritik Tomar 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Yogita Ingle 6 years, 3 months ago

    A is Butanoic acid while B is Methyl proponate with molecular(C4H8O2).
    Structural formula of both the compounds are
    CH3CH2CH2COOH (Butanoic acid) &
    CH3CH2COOCH3 (Methyl proponate)
    Functional group present in compound B is
    an ester (R-COO-R).
    THE relationship between them is that they contain 1 molecule of Oxygen (O2).
    Also both the compound react with NaOH a base

    0Thank You

    ANSWER

    • Posted by Aditya Chauhan 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Lucifer ? Morningstar? 6 years, 3 months ago

    12 and 38

    0Thank You

    ANSWER

    • Posted by D? ? 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Yogita Ingle 6 years, 3 months ago

    Electron dot structure of nitrogen molecule.

    Electron dot structure of C2H6.

    2Thank You

    ANSWER

    • Posted by Uday Choubey 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 0 answers
    ANSWER

    • Posted by Vinod Kumar 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 3 answers

    Priyanshu Kumar 6 years, 3 months ago

    Vital information resource under seize

    0Thank You

    Yogita Ingle 6 years, 3 months ago

    Virus: Virus is the smallest Non-Protoplasmic body which often causes disease. Some of the viruses are rich in minerals and vitamins. E.g. Smallpox virus contains (Riboflavin and Biotin) Size of virus: 25 nanometer to 250 nanometers 1nm=10-9m. The virus is the obligatory parasite.

    0Thank You

    Roman? Reigns? 6 years, 3 months ago

    A virus is a thing which is harmful for any device and can cause stoping of that device....?

    1Thank You

    ANSWER

    • Posted by Shubham Saini 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Riya Soan 6 years, 3 months ago

    Sarah, Rebekah, Leah, and Rachel.

    0Thank You

    ANSWER

    • Posted by Simranjeet Kaur 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Gaurav Seth 6 years, 3 months ago

    • Dmitri Ivanovich Mendeleev, a Russian scientist arranged the elements in increasing order of their relative atomic masses.
    • Mendeleev’s Periodic Law states that the properties of elements are the periodic function of their relative atomic masses.
    • Mendeleev arranged all 63 elements; which were discovered till his time; in the order of their increasing relative atomic masses in a tabular form. It is known as Mendeleev’s Periodic Table. He divided the table in eight columns and seven rows. The columns are known as groups and rows are known as periods.

    1Thank You

    Brahmaan Sourav 6 years, 3 months ago

    It is a periodic table which describes elements as its atomic mass

    3Thank You

    ANSWER

    • Posted by Sanjeevni Singh 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Abhinav ? 6 years, 3 months ago

    <I>As we know that decomposers break down the complex organic compounds present in dead organisms like dead plants and animals. They absorb some of simpler substance and liberate ammonia, CO2 etc. They help in the recycling of materials in ecosystem.

    5Thank You

    ANSWER

    • Posted by Sanjeevni Singh 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Aadya Singh ? 6 years, 3 months ago

    <I>Electric motor converts electrical energy into mechanical energy whereas electric generator converts mechanical energy into electrical energy.

    4Thank You

    ANSWER

    • Posted by Sanjeevni Singh 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 3 answers

    Aadya Singh ? 6 years, 3 months ago

    Brushes - It conducts current between stationary wires and moving parts, most commonly in a rotating shaft.

    3Thank You

    Aadya Singh ? 6 years, 3 months ago

    Split rings - It helps to reverse the direction of current in circuit.

    4Thank You

    Aadya Singh ? 6 years, 3 months ago

    Amarture- It is a rectangular iron core wrapped by the copper coil through which electricity passes and due to magnetic field it experiences a force and rotates.

    4Thank You

    ANSWER

    • Posted by Jatin Solanki 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Brahmaan Sourav 6 years, 3 months ago

    They present hydrogen but not h+ions

    0Thank You

    ANSWER

    • Posted by Gaurav Kumar 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 3 answers

    Sanjeevni Singh 6 years, 3 months ago

    Because adding water to acid is a highly exothermic reaction which produces a large amount of heat which can be harmful and the solution can split out of the test tube.

    1Thank You

    Sanskar Chugh 6 years, 3 months ago

    Because adding water in a test tube filled with acid will cause exothermic reaction which would produce a lot of heat which would be harmful

    0Thank You

    Anwesha Boruah 6 years, 3 months ago

    Becoz adding water in acid is a highly exothermic reaction.When we add water in acid,it produces a lot of heat which may cause the apparatus tu blast and cause accidents

    0Thank You

    ANSWER

    • Posted by Anwesha Boruah 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 3 answers

    Sanjeevni Singh 6 years, 3 months ago

    Hydrocarbon is an organic compound consisting of mainly carbon and hydrogen.

    0Thank You

    Anwesha Boruah 6 years, 3 months ago

    Thnx for the solution

    2Thank You

    A K 6 years, 3 months ago

    Organic compounds which contains only carbon and hydrogen are known as hydrocarbon.

    2Thank You

    ANSWER

    • Posted by Dileep Kasaudhan 4 years, 9 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Sia ? 4 years, 9 months ago

    Locomotion Movement
    Moving away from the original position of an organism is locomotion. Movement can happen with or without moving away from an organism’s original position.
    It is always voluntary. It can either be voluntary or involuntary.
    Locomotion takes place at the organism level. A movement takes place at the biological level.
    Locomotion doesn’t necessarily require energy Movement requires energy.

    0Thank You

    ANSWER

    • Posted by Uni Game Techz 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Student Lyf ? 6 years, 3 months ago

    I also want to know????

    0Thank You

    ANSWER

    • Posted by ? Queen ? 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 3 answers

    Sanskar Chugh 6 years, 3 months ago

    Continue 7 23 39 39+7=46 46/2=23

    0Thank You

    Sanskar Chugh 6 years, 3 months ago

    Li NA K 7 23 39

    0Thank You

    Ankesh ..?? Ready To My First Fly 6 years, 3 months ago

    <atomic mass of calcium is 40 ...strontium is 88 and bariun is 137....if we find the average of 137+40/2we get 88.5 which is the atomic mass of sr....hence proved>

    1Thank You

    ANSWER

    • Posted by Md Ishrak Ansari Ansari 6 years, 3 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Sanskar Chugh 6 years, 3 months ago

    ♧Aquired traits ●The traitswhich are aquired by an individual during his/her life style and are not propogated to the upcoming generation. ●these traits are not associated with the DNA of an individual ■for eg proficiency over a languave ♧Inherited trait ●they are the traits which are inherited by an individual from its previous generation in form of genes and can possibly be carried in future genertion. ●these traits are assosiated with the DNA of an individual ■for eg eyes, ear,nose,hair,skin

    0Thank You

    Sangka Beypi 6 years, 3 months ago

    what is sodium kept immersed inkerosen

    0Thank You

    ANSWER

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