Graphite class 10
WebAug 14, 2024 · Answer: Question 13. Write the name and formula of the first member of the carbon compounds having functional group —COOH. (CBSE 2012) Answer: Question 14. Write the name and formula of the 2nd … WebOct 4, 2024 · Kristen is Director of Growth at Graphite, a boutique digital marketing firm, where she’s responsible for defining and executing best-in-class growth strategies for top tier clients. She ...
Graphite class 10
Did you know?
WebDec 8, 2024 · Graphite is a crystalline carbon that occurs naturally. It’s a mineral that can be found in metamorphic and igneous rocks as a native element. Graphite is a mineral with … WebGraphite is a dark gray to black, very soft, shiny metallic mineral with a distinctive greasy feeling. One of the Earth’s softest minerals, graphite will easily leave marks on paper, …
WebAug 4, 2024 · (a) Graphite is much less dense than diamond (b) Graphite is black and soft (c) Graphite has low melting point (d) Graphite feels smooth and slippery Answer Answer: (c) (iii) Which of the following are isomers? (a) Butane and isobutene (b) Ethane and ethene (c) Propane and propyne (d) Butane and isobutane Answer WebOct 9, 2007 · This three-dimensional structure accounts for the physical properties of graphite. Unlike diamond, graphite can be used as a lubricant or in pencils because the layers cleave readily.
WebJan 25, 2024 · Graphite: Uses 1. It is used in making electrodes and Carbon arcs. 2. It is used as a lubricant for machines working at high temperatures. 3. It is used in the manufacture of lead pencils. The powdered graphite is mixed with clay and pressed into sticks. These sticks are used to make pencils. 4. It is used as a moderator in atomic … WebOct 11, 2024 · Collect samples of carbon (coal or graphite), sulphur and iodine. Carry out the Activities 3.1 to 3.6 with these non-metals and record your observations. Answer: Element &. Symbol. Type of surface. Hardness. Malleability. Ductility.
WebJul 28, 2024 · Assertion (A): Graphite is a good conductor of electricity. Reason (R) : It has one free valence electron. Answer Ans. (a) Q.17. Assertion (A): The functional group present in alcohols is – OH. Reason (R) : It is the same group as present in water, hence water and alcohol have similar properties. Answer Ans. (c) Q.18.
WebFeb 15, 2024 · Question 1: (a) Name the gas in each of the following: The gas evolved on reaction of Aluminium with boiling concentrated caustic alkali solution. The gas produced when excess ammonia reacts with chlorine. A gas which turns acidified potassium dichromate clear green. The gas produced when copper reacts with concentrated nitric … how to solve a rubik\\u0027s cube ytWebJul 7, 2024 · Graphite is the one ‘allotropic form’ of carbon. In a graphite molecule, one valence electron of each carbon atom remains free. Due to the free electrons in its … how to solve a rubik\\u0027s cube zz methodWebMar 14, 2024 · Graphite: A Non-metallic Conductor Each Carbon atom in graphite is in a state of sp2 hybridization, which means it is covalently linked to three other carbon atoms in the same plane. Planar hexagonal rings are produced as a result. The length of the Carbon-Carbon bond in this ring is 142pm. Layers are formed by hexagonal rings. how to solve a recursive sequenceWebOct 3, 2024 · Graphite is used as a lubricant in machines because (a) it is a good conductor of electricity. (b) it has a high melting point and slippery layers. (c) its density ranges from 1.9 to 2.3 g/cm 3. (d) it is strong and soft. Answer Question 3. The allotrope of carbon which is a good conductor of heat and electricity is (a) diamond (b) graphite novation electronicsWebCrystal class: Dihexagonal dipyramidal (6/mmm) Hermann–Mauguin notation: (6/m 2/m 2/m) ... Graphite (/ ˈ ɡ r æ f aɪ t /) is a ... 20 °C (293 K) and 1 standard atmosphere (0.10 MPa), the stable phase of carbon is … how to solve a rubik\u0027s cube 10000x10000WebDiamond, graphite and fullerenes (substances that include nanotubes and 'buckyballs' , such as buckminsterfullerene) are three allotropes of pure carbon. What are allotropes give Example Class 10? The Allotropes are different forms of an element having different physical properties but the same chemical properties. how to solve a rubik\u0027s cube 1000x1000x1000WebClass 10 Science Chapter 4 Carbon and Its Compounds Here, we have provided case based/passage based questions for Class 10 Science Chapter 4 Carbon and Its Compounds. Case Study/Passage Based ... 4.3) Graphite is used as a crucible to melt metals because : (a) it has low melting point (b) it has high boiling point (c) it has low … how to solve a rubik\u0027s cube 3x3 blindfolded