1. Homework Help
  2. CBSE
  3. Class 10
  4. Science

Ask questions which are clear, concise and easy to understand.

Ask Question

    • Posted by Veer,Vansh Prajapati 1 week, 3 days ago

    CBSE > Class 10 > Science
    • 5 answers

    Tanvi Arora 1 week, 2 days ago

    HCL (hydrochloric acid)

    0Thank You

    Charishma Morri 1 week, 2 days ago

    hydrochloric acid

    0Thank You

    Kanishka Parmar Kanishka 1 week, 3 days ago

    HCL which help to activate inactive pesinogen into active pepsin

    1Thank You

    Pra Deep 1 week, 3 days ago

    Hii mam

    2Thank You

    Sunaina Gothwal 1 week, 3 days ago

    Hydrochloric acid

    4Thank You

    ANSWER

    • Posted by Bharnak Maji 1 week, 3 days ago

    CBSE > Class 10 > Science
    • 4 answers

    Komal Yadav 5 days, 5 hours ago

    Less than 15 cm because the object is placed between the pole and focus

    1Thank You

    Your Shann 6 days, 3 hours ago

    Less than 15 centimetres ! Kindly you got it!

    0Thank You

    Pragya Waldia 6 days, 4 hours ago

    Less than 15 it will be put between pole and focus of the concave mirror to provide magnified virtual and erect image

    1Thank You

    Shreya Kumari 1 week ago

    Less than 15 cm

    1Thank You

    ANSWER

    • Posted by Rk Arman 1 week, 4 days ago

    CBSE > Class 10 > Science
    • 5 answers

    Shreya Kumari 1 week, 3 days ago

    H 2 gas

    0Thank You

    Urja Kashyap 1 week, 3 days ago

    H2 gas

    0Thank You

    Mansi Shahi 1 week, 3 days ago

    Hydrogen

    0Thank You

    Lakshya Poonia 1 week, 4 days ago

    Hydrogen

    0Thank You

    Rk Arman 1 week, 4 days ago

    Hydrogen

    0Thank You

    ANSWER

    • Posted by Dipanshu Saini 1 week, 4 days ago

    CBSE > Class 10 > Science
    • 3 answers

    Mahima Kumari 1 week, 2 days ago

    On electrolysis of aqueous solution (brine solution) of sodium chloride the sodium hydroxide build up near the cathode where water to reduced to hydrogen gas and hydroxide ion this process is called Chlor - Alkali process

    0Thank You

    Anamika Patel 1 week, 3 days ago

    Process of electrolysis of concentration of nacl solution is called brine solution and hydrogen form on cathode and chlorine on anode this process is called chlor alkali

    0Thank You

    Mansi Shahi 1 week, 3 days ago

    The process of electrolysis of brine solution is called chlor alkali

    1Thank You

    ANSWER

    • Posted by C.M.Pugazhenthi. C.M.Pugal 1 week, 4 days ago

    CBSE > Class 10 > Science
    • 5 answers

    Murari Kandoi 1 week, 2 days ago

    Lvl 58

    0Thank You

    Avedhiya Akku 1 week, 3 days ago

    50

    0Thank You

    Lingaraj Paschapur 1 week, 3 days ago

    My is 1854261782

    0Thank You

    C.M.Pugazhenthi. C.M.Pugal 1 week, 4 days ago

    My id is Oscarls5911p

    1Thank You

    C.M.Pugazhenthi. C.M.Pugal 1 week, 4 days ago

    Iam having

    1Thank You

    ANSWER

    • Posted by Mohit Verma 1 week, 4 days ago

    CBSE > Class 10 > Science
    • 5 answers

    Shruti Namdev 1 week, 3 days ago

    Calcium carbonate

    0Thank You

    Aditya Singh Chouhan 1 week, 4 days ago

    Calcium carbonate (caco³)

    0Thank You

    C.M.Pugazhenthi. C.M.Pugal 1 week, 4 days ago

    Calcium Carbonate(CaCo³)

    2Thank You

    Vedant Mundra 1 week, 4 days ago

    Calcium carbonate

    0Thank You

    Arohi Raj 1 week, 4 days ago

    Calcium Carbonate ( Lime Stone)

    1Thank You

    ANSWER

    • Posted by Anupama Udayakumar 1 week, 4 days ago

    CBSE > Class 10 > Science
    • 4 answers

    Komal Yadav 5 days, 5 hours ago

    Glass-1. 52 and water-1. 33

    0Thank You

    Mansi Shahi 1 week, 3 days ago

    Glass - 1.52 and water - 1.333

    0Thank You

    Aditya Singh Chouhan 1 week, 4 days ago

    Glass- 1.50 Water - 1.33

    0Thank You

    Kajal Kaushik 1 week, 4 days ago

    Water= 1.33; glas=1.50

    0Thank You

    ANSWER

    • Posted by Arohi Raj 1 week, 4 days ago

    CBSE > Class 10 > Science
    • 3 answers

    Shreya Kumari 1 week ago

    I am the best teacher for bio

    0Thank You

    Aditya Singh Chouhan 1 week, 4 days ago

    I think who would u like best 😍😍

    3Thank You

    C.M.Pugazhenthi. C.M.Pugal 1 week, 4 days ago

    🤔

    3Thank You

    ANSWER

    • Posted by Ashish Kumar 1 week, 4 days ago

    CBSE > Class 10 > Science
    • 1 answers

    Tannu Yadav 1 week, 4 days ago

    Hello sir

    1Thank You

    ANSWER

    • Posted by Ikra Chauhan 1 week, 4 days ago

    CBSE > Class 10 > Science
    • 5 answers

    Pragya Waldia 6 days, 4 hours ago

    Combination and oxidation. Combination reactions are the reactions where more than one reactants react to form a single product . Oxidation reactions involve addition of oxygen or removal of hydrogen to a substance. 2Cu +O2 —> 2CuO Cu is getting oxidised

    1Thank You

    Upendra Singh 1 week, 2 days ago

    Combination and oxidation

    1Thank You

    Charishma Morri 1 week, 2 days ago

    combination and oxidation

    1Thank You

    Aditya Singh Chouhan 1 week, 4 days ago

    Combination and oxidation

    1Thank You

    Satin Choudhary 1 week, 4 days ago

    Cobination reaction or oxidation

    1Thank You

    ANSWER

    • Posted by Vanshika Singh 1 week, 5 days ago

    CBSE > Class 10 > Science
    • 5 answers

    Shreya Kumari 1 week, 3 days ago

    Science is a technology.

    0Thank You

    C.M.Pugazhenthi. C.M.Pugal 1 week, 4 days ago

    Free fire id

    1Thank You

    C.M.Pugazhenthi. C.M.Pugal 1 week, 4 days ago

    Or

    1Thank You

    C.M.Pugazhenthi. C.M.Pugal 1 week, 4 days ago

    😂

    1Thank You

    Pranav Mishra 1 week, 4 days ago

    Can you give me your instagram I'd😅

    1Thank You

    ANSWER

    • Posted by Supriya Baral 1 week, 5 days ago

    CBSE > Class 10 > Science
    • 5 answers

    Mahima Kumari 1 week, 2 days ago

    No CaCo3 is called calcium carbonate

    0Thank You

    Mansi Shahi 1 week, 3 days ago

    No

    0Thank You

    Shreya Kumari 1 week, 4 days ago

    No, CaCo3 is calcium cabonate

    0Thank You

    Daksh Batra 1 week, 4 days ago

    No

    0Thank You

    Prachi Wandhekar 1 week, 5 days ago

    👎

    0Thank You

    ANSWER

    • Posted by Mr Raj 1 week, 5 days ago

    CBSE > Class 10 > Science
    • 3 answers

    Murari Kandoi 1 week, 2 days ago

    Online

    0Thank You

    Vedant Mundra 1 week, 4 days ago

    Where are you from

    0Thank You

    Tannu Yadav 1 week, 4 days ago

    Hello sir

    0Thank You

    ANSWER

    • Posted by Sintu Pal 1 week, 6 days ago

    CBSE > Class 10 > Science
    • 5 answers

    Komal Yadav 5 days, 5 hours ago

    Our heart perform double circulation and for this there is a seperation of oxygenated and deoxygenated blood among these 4 chambers

    0Thank You

    Mamta Devi 6 days, 1 hour ago

    To seperate deoxygenated and oxygenated blood as this seperation allows an efficient supply of oxygen to body cells

    0Thank You

    Tanvi Arora 1 week, 2 days ago

    For double circulation

    0Thank You

    Kartik Kulshrestha 1 week, 5 days ago

    For double circulation that the oxygenated and deoxygenated blood do not get mix with each other

    1Thank You

    Sanvi Sharma 1 week, 6 days ago

    For double circulation.so that oxygenated and deoxygenated blood donot mix and maintain the body temperature

    1Thank You

    ANSWER

    • Posted by Namita Goswami 2 weeks ago

    CBSE > Class 10 > Science
    • 5 answers

    Kim Ash 1 week, 6 days ago

    Calcium carbonate CaCO3

    0Thank You

    Lingraj T 1 week, 6 days ago

    Caco3

    1Thank You

    Arohi Raj 1 week, 6 days ago

    Calcium carbonate CaCo3

    0Thank You

    Madhusudan Murmu 1 week, 6 days ago

    Caco3

    0Thank You

    Steve Kandulna 1 week, 6 days ago

    Formula for marble CaCO3

    2Thank You

    ANSWER

    • Posted by Usha Vishnoi 2 weeks ago

    CBSE > Class 10 > Science
    • 3 answers

    Komal Yadav 5 days, 5 hours ago

    Silver chloride

    0Thank You

    Shreya Kumari 1 week, 3 days ago

    Silver chloride

    0Thank You

    Namita Goswami 2 weeks ago

    C6h12o6+6o2_6co2+6h2o+e

    2Thank You

    ANSWER
    Hhh

    • Posted by Abhijeet Kumar 2 weeks ago

    CBSE > Class 10 > Science
    • 0 answers
    ANSWER

    • Posted by Alka Yadav 2 weeks ago

    CBSE > Class 10 > Science
    • 0 answers
    ANSWER

    • Posted by Alka Yadav 2 weeks ago

    CBSE > Class 10 > Science
    • 1 answers

    Ritika Thakur 1 week, 5 days ago

    2KCl +2O2------2KO2+Cl2

    0Thank You

    ANSWER

    • Posted by 𝕄𝕆ℕ𝕀𝕊ℍ𝔸 𝕂𝔸ℙ𝕌ℝ𝕀𝔸 2 weeks ago

    CBSE > Class 10 > Science
    • 1 answers

    Kartik Kulshrestha 1 week, 5 days ago

    In term 1 Ch1,2,3,6,11 only MCQ based paper will come its of science

    1Thank You

    ANSWER

    • Posted by Utkarsh Mahar 2 weeks ago

    CBSE > Class 10 > Science
    • 4 answers

    Komal Yadav 5 days, 5 hours ago

    Dilute sulphuric acid

    0Thank You

    Prachi Wandhekar 1 week, 5 days ago

    A dilute acid is that in which the concentration of the water mixed in the acid is higher than the concentration of the acid itself. For instance, 5% sulfuric acid is a dilute acid

    0Thank You

    Kartik Kulshrestha 1 week, 5 days ago

    Dilute hydrochloric acid,dilute sulphuric acid

    0Thank You

    Sohel Kabir 1 week, 6 days ago

    Dil H2SO4

    1Thank You

    ANSWER

    • Posted by Truptesh Patel 2 weeks, 1 day ago

    CBSE > Class 10 > Science
    • 1 answers

    Ankit Kumar 2 weeks ago

    The burning magnesium ribbon produces light of sufficient intensity to cause temporary loss of sight. Avoid looking directly at the light source. The burning of magnesium in air produces intense heat which can cause burns and initiate combustion in flammable materials.

    0Thank You

    ANSWER

    • Posted by Arnav Gupta 2 weeks, 1 day ago

    CBSE > Class 10 > Science
    • 0 answers
    ANSWER

    • Posted by Aditya Kumar 2 weeks, 1 day ago

    CBSE > Class 10 > Science
    • 3 answers

    Ankit Kumar 2 weeks ago

    convergent rays are the light rays from different points tend towards single point. divergent rays are the light rays starts from one point travel in different directions.

    0Thank You

    Prabhjot Singh 2 weeks ago

    Converging:- The rays which reflect to meet at same point Diverging :-The rays which reflect to not meet at same point but it diverge . (Converging) means nearing of rays (Diverging) means faring of rays

    0Thank You

    Prasanna Salunkhe 2 weeks, 1 day ago

    Converging rays means which meet at one point, and diverging age means which diverge from a point.. converging in concave mirror and diverging in convex mirror.

    1Thank You

    ANSWER

    • Posted by Jeny James 2 weeks, 1 day ago

    CBSE > Class 10 > Science
    • 1 answers

    Kajal Kaushik 1 week, 4 days ago

    5000KJ

    0Thank You

    ANSWER

    • Posted by Saikat Nandi 2 weeks, 1 day ago

    CBSE > Class 10 > Science
    • 1 answers

    Ranjana Vijaywargiya 2 weeks, 1 day ago

    D

    1Thank You

    ANSWER

    • Posted by Garvit Vats 2 weeks, 1 day ago

    CBSE > Class 10 > Science
    • 4 answers

    Shreya Kumari 1 week, 3 days ago

    C2H5OH

    1Thank You

    Sanvi Sharma 1 week, 6 days ago

    C2H5OH

    0Thank You

    Vishal 😍😍 2 weeks, 1 day ago

    Ch2h5oh

    0Thank You

    Deepanshu Baranwal 2 weeks, 1 day ago

    C2H5OH

    3Thank You

    ANSWER

    • Posted by Komal Yogi 2 weeks, 2 days ago

    CBSE > Class 10 > Science
    • 0 answers
    ANSWER

    • Posted by Ayantika Bhattacharyya 2 weeks, 2 days ago

    CBSE > Class 10 > Science
    • 2 answers

    Sanskar Tiwari 2 weeks, 1 day ago

    Used as cleaning surfaces.. Also known as calcium oxy chloride.

    0Thank You

    Dhruv Sharma 2 weeks, 2 days ago

    Fire proofing material

    0Thank You

    ANSWER

    • Posted by Ritika Arya🥀 2 weeks, 2 days ago

    CBSE > Class 10 > Science
    • 0 answers
    ANSWER

    myCBSEguide App

    myCBSEguide

    Trusted by 1 Crore+ Students

    Install Now

    CBSE Test Generator

    Create papers in minutes

    Print with your name & Logo

    Download as PDF

    3 Lakhs+ Questions

    Solutions Included

    Based on CBSE Blueprint

    Best fit for Schools & Tutors

    Create Papers

    Work from Home

    • Work from home with us
    • Create questions or review them from home

    No software required, no contract to sign. Simply apply as teacher, take eligibility test and start working with us. Required desktop or laptop with internet connection

    Join us Now

    Corporate

    CBSE Resources

    Student Resources

    Teacher Resources

    Mobile App
    myCBSEguide App
    Social

    All Content and Intellectual Property is under Copyright Protection | myCBSEguide.com ©2007-2021

    APPLICATIONS
    Student
    Teacher
    My Menu