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    • Posted by Oav Papadahandi 5 years ago

    CBSE > Class 10 > Science
    • 5 answers

    Thakur Netra 5 years ago

    Because hydrogen could easily losse one electron to form a poditive cation as well as it existed as diatomic molecule as group 17 elements

    1Thank You

    Sumit Kumar 5 years ago

    Yea

    1Thank You

    Ritika Talwar 5 years ago

    Because of Hydrogen ' s anamolous behaviour. It shows properties of both metal and non metal, it can do both lose and gain electrons .

    1Thank You

    Fiza Noriya 5 years ago

    Because Mendeleev arranged the elements in terms of their increasing atomic masses as well as their similar chemical properties

    2Thank You

    Himanshu Panwar 5 years ago

    Because mendeeleev arrange the elements according to increase atomic masses that's why a correct position of hydrogen did not explain in mendeeleev periodic table

    1Thank You

    ANSWER

    • Posted by Nithyashree Suresh Babu 5 years ago

    CBSE > Class 10 > Science
    • 5 answers

    Ritika Talwar 5 years ago

    Father is responsible

    0Thank You

    Vaishali 10 5 years ago

    Husband is responsibile for these

    0Thank You

    Fiza Noriya 5 years ago

    A child inherits X chromosome from his/her mother and the one who inherits X chromosome from her father will be a girl and the one who inherits Y chromosome from his father will be a boy... Male. Female XY. XX XX. XY Girl. Boy

    4Thank You

    Himanshu Panwar 5 years ago

    The sperm of male is determined the s.ê.x of baby

    0Thank You

    Saif Raza 5 years ago

    Cbsce syllabus

    1Thank You

    ANSWER

    • Posted by Oav Papadahandi 5 years ago

    CBSE > Class 10 > Science
    • 1 answers

    Khushi 5 years ago

    Eka-aluminium and gallium are the two names of the same element as Eka -Aluminum has almost exactly the same properties as the actual properties of the gallium element. The properties: atomic mass, density, melting point, formula of chloride and formula of oxide are almost the same.

    3Thank You

    ANSWER

    • Posted by Alankrit Bharti Verma 5 years ago

    CBSE > Class 10 > Science
    • 3 answers

    Vaishali 10 5 years ago

    They realise H+ ions in aqueous solution

    0Thank You

    Nithyashree Suresh Babu 5 years ago

    1.Acids have a SOUR taste. 2.All acids are SOLUBLE in water. 3.Acids solutions turn BLUE litmus paper RED. 4.Acid solutions have a pH values < 7. 5.Most acid solutions are CORROSIVE. 6.All dilute acids CONDUCT ELECTRICITY due to the presence MOBILE IONS in solution.

    3Thank You

    Oav Papadahandi 5 years ago

    PHYSICAL PROPERTIES OF ACIDS: Acids have a SOUR taste.All acids are SOLUBLE in water.Acids solutions turn BLUE litmus paper RED.Acid solutions have a pH values < 7.Most acid solutions are CORROSIVE.All dilute acids CONDUCT ELECTRICITY due to the presence MOBILE IONS in solution. ??

    2Thank You

    ANSWER

    • Posted by Oav Papadahandi 5 years ago

    CBSE > Class 10 > Science
    • 5 answers

    Nithyashree Suresh Babu 5 years ago

    According to NCERT Book... 1. No fixed position can be given to hydrogen in the periodic table. 2. The atomic masses don't increase in a regular manner in going from one element to the next. 3. It was not possible to predict how many elements could be discovered between two elements-especially when we take heavier elements.

    0Thank You

    Oav Papadahandi 5 years ago

    Send the answer of 2nd question

    0Thank You

    Oav Papadahandi 5 years ago

    Thanks khusi?

    2Thank You

    Khushi 5 years ago

    Limitations of Mendeleev’s periodic table: ✿Elements with large difference in properties were included in the same group. Eg: Hard metals like copper (Cu) and silver (Ag) were included along with soft metals like sodium (Na) and potassium (K). ✿No proper position could be given to the element hydrogen. Non-metallic hydrogen was placed along with metals like lithium (Li), sodium (Na) and potassium (K). ✿The increasing order of atomic mass was not strictly followed throughout. Eg. Co & Ni, Te &I. ✿No place for isotopes in the periodic table.

    1Thank You

    Account Deleted 5 years ago

    ??

    0Thank You

    ANSWER

    • Posted by Oav Papadahandi 5 years ago

    CBSE > Class 10 > Science
    • 2 answers

    Khushi 5 years ago

    1. In Mendeleev’s periodic table, the horizontal rows are called periods. There are seven periods and they are numbered from 1 to 7. 2. As one moves from left to right in a period, there is a gradual change from metallic to non-metallic properties. 3. There are eight vertical columns called groups. They are numbered from I to VIII. Groups I to VII are further divided into two subgroups A and B.

    1Thank You

    Nithyashree Suresh Babu 5 years ago

    Main features of Mendeleev's Periodic Table: (a) There are seven horizontal rows in the periodic table. They are called periods and are numbered from 1 to 7. (b) In a given period, there is a regular gradation in the properties of elements from left to right. (c) There are eight vertical columns in the periodic table. These are named as groups. They are numbered from I to VIII. Groups I to VII are subdivided into subgroups A and B.

    1Thank You

    ANSWER

    • Posted by Ujjwal Jaiswal 5 years ago

    CBSE > Class 10 > Science
    • 5 answers

    Khushi 5 years ago

    The SI unit of pressure is Pascal (represented as Pa) which is equal to one newton per square metre.

    1Thank You

    Yashika B. 5 years ago

    Pascal

    1Thank You

    Pankaj Chandravanshl 5 years ago

    Pascal

    1Thank You

    Naina Gupta 5 years ago

    Pascal

    1Thank You

    Khushi Kaur 5 years ago

    pascal

    1Thank You

    ANSWER

    • Posted by Mahak Sadhya 5 years ago

    CBSE > Class 10 > Science
    • 5 answers

    Aparna Thakur 5 years ago

    Because one carbon compound is free State in graphite therefore graphite conducts electricity

    1Thank You

    Yash Verma 5 years ago

    Because one corbon compund is free state in graphiete therefore Graphite conduct electricity

    1Thank You

    Dr. Asha Kumari 👩‍⚕️I.A.S Officer😊❣️💖 5 years ago

    Show the refractive index of water with respect to air 4/3. What is the refractive index.with respect to water

    0Thank You

    Ujjwal Jaiswal 5 years ago

    Ok wait

    0Thank You

    Ujjwal Jaiswal 5 years ago

    Oo

    0Thank You

    ANSWER

    • Posted by Gursharn Sandhu 5 years ago

    CBSE > Class 10 > Science
    • 1 answers

    Ramanji Chintha 5 years ago

    Refractive index of water =4/3 

    Then n= c/v 

    C =3×108 m/s 

    V=3×108 × 3 /4 

    V= 2.5 ×108 m/s 

     

     

    0Thank You

    ANSWER

    • Posted by Itachi Uchiha ? 5 years ago

    CBSE > Class 10 > Science
    • 1 answers

    Vishal Tilokani 5 years ago

    Thanks for letting us know ! Depends from school to school. But, our papers will be from CBSE. So, it's not necessary to make judgement ; either Oswaal can get you good marks.

    5Thank You

    ANSWER

    • Posted by Chandrakala Patail 5 years ago

    CBSE > Class 10 > Science
    • 3 answers

    Astrid Babe 5 years ago

    Hydrogen because ratio of water is 2:1 hydrogen has twice than oxygen Hope it helpful for you

    0Thank You

    Adithya Dev A 5 years ago

    Hydrogen. 2H2 + O2 ----> 2H2O.

    1Thank You

    Sunny Kashyap 5 years ago

    Gas

    0Thank You

    ANSWER

    • Posted by Susma Chatterjee 5 years ago

    CBSE > Class 10 > Science
    • 5 answers

    Sujith Sali 5 years ago

    Equal number of atom in reactants and products. For balanced chemical equation it should be balanced in reactants And products. It can be done by trial method .

    0Thank You

    Khushi 5 years ago

    The equation in which the number of atoms of all the molecules is equal on both sides of the equation is known as a balanced chemical equation.

    0Thank You

    Kiran Kumari 5 years ago

    The equation in which no. Of atom of each element are equal on both side is called balanced chemical equation

    1Thank You

    Chandrakala Patail 5 years ago

    It has equal number of atoms of different elements in reactants and product

    0Thank You

    Adithya Dev A 5 years ago

    When the no. of atoms of same type in both LHS and RHS in a chemical equation at a specific temperature and pressure is equal, then the equation is said to be balanced. Eg :- 2H2 + O2 ----> 2H2O.

    1Thank You

    ANSWER

    • Posted by Priya Tomar 5 years ago

    CBSE > Class 10 > Science
    • 1 answers

    Susma Chatterjee 5 years ago

    Newland’s law of octaves.

    0Thank You

    ANSWER

    • Posted by Anandi Sigar 5 years ago

    CBSE > Class 10 > Science
    • 1 answers

    Priya Tomar 5 years ago

    Carbon is a versatile element and is found in many different chemical compounds, including those found in space. Carbon is versatile because it can form single, double, and triple bonds.

    3Thank You

    ANSWER

    • Posted by Zahidur Hussain 5 years ago

    CBSE > Class 10 > Science
    • 5 answers

    Aparna Thakur 5 years ago

    Plane mirror

    0Thank You

    Khushi 5 years ago

    Plane mirror

    0Thank You

    Priya Tomar 5 years ago

    Plane mirror

    1Thank You

    Sunny Singh Rajpoot 5 years ago

    Concave lens

    1Thank You

    Adithya Dev A 5 years ago

    Plane mirror.

    2Thank You

    ANSWER

    • Posted by Oav Papadahandi 5 years ago

    CBSE > Class 10 > Science
    • 5 answers

    Khushi 5 years ago

    The S.I Unit of potential difference is volt (V). 1 volt =One volt is the potential difference between two points in a current carrying conductor when 1 joule of work is done to move a charge of 1 coulomb from one point to the other.

    1Thank You

    Pawan Kumari 5 years ago

    Volt

    1Thank You

    Rohit Saini 5 years ago

    The SI unit of electric potential difference is volt (named after Italian scientist Alessandro Volta). The electric potential difference across two points is said to be 1V if 1J of work is done in moving 1C of charge from one point to another. 1V = 1J/1C. .

    0Thank You

    Adithya Dev A 5 years ago

    The SI unit of electric potential difference is volt (named after Italian scientist Alessandro Volta). The electric potential difference across two points is said to be 1V if 1J of work is done in moving 1C of charge from one point to another. 1V = 1J/1C.

    2Thank You

    Gagan Bansal 5 years ago

    Unit of potential difference is volt

    1Thank You

    ANSWER

    • Posted by Dewang Doye 5 years ago

    CBSE > Class 10 > Science
    • 0 answers
    ANSWER

    • Posted by Khüšhi ☺ 5 years ago

    CBSE > Class 10 > Science
    • 5 answers

    Adithya Dev A 5 years ago

    Volt (named after Italian scientist Alessandro Volta).

    1Thank You

    Rohit Saini 5 years ago

    Volt

    0Thank You

    Zahidur Hussain 5 years ago

    Volt

    0Thank You

    Oav Papadahandi 5 years ago

    Volt (v)

    0Thank You

    Shivam Shah 5 years ago

    Volte

    0Thank You

    ANSWER

    • Posted by Vinay Kumar 5 years ago

    CBSE > Class 10 > Science
    • 1 answers

    Gagan Bansal 5 years ago

    Volt

    0Thank You

    ANSWER

    • Posted by Shruti Kushwaha 5 years ago

    CBSE > Class 10 > Science
    • 5 answers

    Aakriti Rawat 5 years ago

    For science edumantra and for maths green board

    1Thank You

    Teesha Bhansali 5 years ago

    Vedantu's umang series/Magnet brains

    0Thank You

    Khüšhi ☺ 5 years ago

    Bkp for science and maths teacher for maths I have completed my syllabus with their help ☺

    3Thank You

    Mohit Bhandari 5 years ago

    Vedantu as well as edumamtra

    1Thank You

    Ayush Joshi 5 years ago

    Vedantu

    0Thank You

    ANSWER

    • Posted by Priyanshi Yadav 5 years ago

    CBSE > Class 10 > Science
    • 3 answers

    Pragya Bhadana 5 years ago

    A ray from opticle center

    0Thank You

    Snailvi Tiwari 5 years ago

    Optical Centre

    0Thank You

    Adithya Dev A 5 years ago

    Principal axis.

    1Thank You

    ANSWER

    • Posted by All In One 5 years ago

    CBSE > Class 10 > Science
    • 1 answers

    Adithya Dev A 5 years ago

    The properties of a compound is generally, different from the properties of its constituent elements.

    2Thank You

    ANSWER

    • Posted by Faiza Irshad 5 years ago

    CBSE > Class 10 > Science
    • 1 answers

    Huzaifa Fareed 5 years ago

    Amniotic fluid embolism can cause serious complications for you and others, including: Brain injury. Low blood oxygen can cause permanent, severe neurological damage or brain death.

    1Thank You

    ANSWER

    • Posted by Chandani Maurya 5 years ago

    CBSE > Class 10 > Science
    • 3 answers

    Adithya Dev A 5 years ago

    Sorry, dihybrid is two pairs.

    0Thank You

    Adithya Dev A 5 years ago

    In monohybrid crosses, any one pair of contrasting traits is considered. Eg :- Tall pea plants (TT) and short pea plants (tt). In pea plants, the phenotypic ratio of F2 progeny in monohybrid crosses is always roughly 3:1. But, in dihybrid crosses, more than one pairs of contrasting traits may be considered. Eg :- Pea plants bearing round and green seeds (RRyy) and wrinkled and yellow seeds (rrYY). In pea plants, the phenotypic ratio of F2 progeny is 9:3:3:1.

    2Thank You

    Dhruv Dhruv 5 years ago

    Hlo

    5Thank You

    ANSWER

    • Posted by Sumit Kumar 5 years ago

    CBSE > Class 10 > Science
    • 2 answers

    All In One 5 years ago

    When we keep food in air tight container it reduce the chance of oxidation of fat and oil containing food items, or slow down the oxidation .

    2Thank You

    Adithya Dev A 5 years ago

    The food we eat may contain fats and oils which when kept in contact with air for a long time, gets oxidised in presence of oxygen to become rancid. This would result in foul smell and bad taste. But, if kept in air tight containers, the chance of coming in contact with oxygen containing air would be reduced. This would thus, help slow down the process of oxidation.

    3Thank You

    ANSWER

    • Posted by Priya Tomar 5 years ago

    CBSE > Class 10 > Science
    • 2 answers

    Adithya Dev A 5 years ago

    Fist reaction is double displacement and second reaction is thermal decomposition.

    2Thank You

    Adithya Dev A 5 years ago

    P = Silver (Ag). Q = Silver Bromide (AgBr)..... AgNO3 + NaBr ----> AgBr + NaNO3..... For black and white photography ===> 2AgBr --Δ--> 2Ag + Br2.

    2Thank You

    ANSWER

    • Posted by Megha Thakur 5 years ago

    CBSE > Class 10 > Science
    • 5 answers

    Chanchal Sharma 5 years ago

    Through placenta embryo get nourished ,due to implantantaion of fertilized egg in uterus it create a tube called placenta for nourishment of embryo

    1Thank You

    Shivam Kumar 5 years ago

    When the embryo get implanted the placenta is connected to a cord known as amblical cord through which embryo get nourished

    0Thank You

    Vetrivel S 10 A4 5 years ago

    Placenta is a tissue with attaches with embryo and helps in nourishment

    1Thank You

    Akshita Gupta 5 years ago

    Through placenta

    0Thank You

    Himanshu Verma 5 years ago

    Through placenta

    0Thank You

    ANSWER

    • Posted by Laxmi Sharma 5 years ago

    CBSE > Class 10 > Science
    • 0 answers
    ANSWER

    • Posted by Tshering Dolkar Bhutia 5 years ago

    CBSE > Class 10 > Science
    • 1 answers

    Manish Garg 5 years ago

    Fat is digested in small intestine by enzyme lipase.

    3Thank You

    ANSWER

    • Posted by Satyam Gupta 5 years ago

    CBSE > Class 10 > Science
    • 5 answers

    Bhoomika Maheshwari 5 years ago

    In binary fission parent cell divides into two daughter cells -example Amoeba ,leishmania

    1Thank You

    Navjot Kaur 5 years ago

    In binary fission, the parent cell divides itself into two equal and identical daughter cells. It is the most common form of reproduction in prokaryotes such as bacteria. In multiple fission, a single parent cell is divided into many daughter cells.

    2Thank You

    Adithya Dev A 5 years ago

    BINARY FISSION = parent body divides into two daughter cells. Karyokinesis occurs only once. Eg :- Amoeba, leishmania, etc. MULTIPLE FISSION = parent body divides into multiple daughter cells. Karyokinesis occurs multiple times. Eg :- Plasmodium.

    1Thank You

    Heena Choudhary 5 years ago

    In binary fission, there is only one parent organism. Eg. Amoeba In multiple fission, there are more than one parent organism.. Eg. Plasmodium

    0Thank You

    Heena Choudhary 5 years ago

    H

    0Thank You

    ANSWER

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