Class 10 Chemistry - Different types of Chemical Reactions
Question: What are different types of chemical reactions?
Answer:
There are several different types of chemical reactions, including:
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Question: What are different types of chemical reactions?
Answer:
There are several different types of chemical reactions, including:
Q1. What is database?
Answer: A database is an organized collection of data. The data are typically organized to model aspects of reality in a way that supports processes requiring this information. The term "database" can both refer to the data themselves or to the database management system.
Study the following case study and answer the questions given below:
Water is a simple molecule consisting of one oxygen atom bonded to two different hydrogen atoms. Because of the higher electronegativity of the oxygen atom, the bonds are polar covalent (polar bonds). The oxygen atom attracts the shared electrons of the covalent bonds to a significantly greater extent than the hydrogen atoms. The molecule has a bent structure, the H—O—H bond angle is about 105°.
Q1. In which of the following, heat energy will be evolved?
(a) Electrolysis of water
(b) Dissolution of NH4Cl in water
(c) Burning of L.P.G.
(d) Decomposition of AgBr in the presence of sunlight
1. Who discovered cell?
a) Robert Hooke
b) Robert Brown
c) Anton Leeuwenhoek
d) Schleiden & Schwann
Q1. What is oxidation?
Answer: Addition of oxygen or removal of hydrogen from a compound is known as oxidation.
Elements or compounds in which oxygen or non-metallic element is added or hydrogen or metallic element is removed are called to be oxidized.
Q1. Define vibration?
Answer: Rapid to and fro motion of an object.
Q2. How is sound produced?
Answer: Vibrating objects produce sound.
Q3. Define wave.
Answer: A wave is a disturbance produced in a medium as the particles of the medium vibrate.
Question: How do we conserve biodiversity?
Answer: Primarily two approaches are followed i.e.
1. In Situ conservation
2. Ex Situ conservation