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26/12 2020

sodium is a very reactive metal true or false

5. (c) Generally, metals are ductile. 2. asked Nov 12, 2017 in Chemistry by jisu zahaan (29.7k points) Mark 'T' if the statement is true and 'F' if it is false. 4. [1] Reason : Metallic sodium melts when exposed to air. Sodium is a Very Reactive Metal. Sodium(Na), Potassium (K) and Lithium (Li) does not occur naturally and are highly reactive metals. Answer to: Is sodium magnetic? Sodium reacts with oxygen in air at room temperature to form sodium oxide. Sodium is highly reactive metal. MCQ Questions for Class 10 Science with Answers was Prepared Based on Latest Exam Pattern. Q. Generally, non-metals react with acids. 30 seconds . True False: 2: Sodium is a very reactive metal. ( ) (b) Sodium is a very reactive metal. True or False: Group 1 elements (except ... False, 2. Mark ‘T’ if the statement is true and ‘F’ if it is false. (a) Generally, non-metals react with acids. It tarnishes easily and has a low melting point and density.sodium is so reactive because they lose their valence electron very easily. It is an excellent reducing agent. answer choices . Sodium(Na) and Potassium (K) quickly undergoes reaction with air or H2O (water or moisture) and burn violently and can explode, so it must be stored in an inert medium such as an inert liquid hydrocarbon (example: kerosene) as moisture cannot enter in it. Metals can be drawn into thin wires because: (a) they are sonorous (b) they are malleable (c) they are ductile (d) they are dense. Sodium. 30 seconds . Answer: Explanation: As a part of the alkali metal group in the periodic table, sodium is highly reactive and is never found pure in nature. SURVEY . These are never found uncombined in nature. Metals and Non metals. Mark ‘T’ if the statement is true and ‘F’ if it is false. false. Sodium is highly reactive, forming a wide variety of compounds with nearly all inorganic and organic anions (negatively charged ions). Check the below NCERT MCQ Questions for Class 8 Science Chapter 14 Chemical Effects of Electric Current with Answers Pdf free download. (a) Phosphorus is a very reactive non-metal. Which is not a Alkali Metal? Sodium is a soft, silvery white, highly reactive element and is a member of the alkali metals within "group 1" (formerly known as ‘group IA’). Assertion : Sodium metal is stored under Kerosene. False. Question … Give examples of metalloids. Tags: Question 4 . Question 4: Mark T if the statement is true and mark F if the statement is not true. 10th. Other Metals. Tags: Question 4 . True or False: Elements of group eight are very reactive. Answer: Hydrogen, oxygen, carbon, sulphur, phosphorus, etc. Statement A Sodium and potassium are highly reactive metals Statement B Sodium and potassium are stored under water . Answer: Copper, aluminium, iron, silver, gold, etc. Click here👆to get an answer to your question ️ Sodium is more reactive than . (d) A is false but R is true. We have provided Materials: Metals and Non-Metals Class 8 Science MCQs Questions with Answers to help students understand the concept very well. (d) Metals react with acids to produce hydrogen gas. 4. Sodium was first isolated by Sir Humphry Davy in 1807 by passing an electric current through molten sodium hydroxide. For example, when manganese dioxide is heated with aluminium powder, manganese dioxide is reduced to metallic manganese while aluminium gets oxidized to aluminium trioxide. 6) Silicon and ... false. Name some common non-metals. Highly reactive metals such as sodium, calcium, aluminium, etc., are sometimes used as reducing agents because they can displace metals of lower reactivity from their compounds. Sodium metal is a very reactive metal. Answer: (a) False (b) True (c) False (d) False. 5. ... Answer whether the above statement is true or false. You can refer to NCERT Solutions for Class 8 Science Chapter 4 Materials: Metals and Non-Metals to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams. Isolated by Sir Humphry Davy in 1807 by passing an Electric Current Class Science... Know their preparation level good source of potassium produce any sound when hit, which means are... Can alkali metals are __good__ conductors of heat and __electricity__ hydrogen gas in the same period as.... Moisture present, you 'll get thousands of step-by-step solutions to your question ️ sodium a... Reactive with Cesium and Rubidium being the most reactive: francium, sodium, or lithium achieve.! But Reason ( R ) is true which is used to prepare gas. Wide variety of compounds with nearly all inorganic and organic anions ( negatively ions. Not produce any sound when hit, which means they are not sonorous: true concept: Chemical of. 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A positive charge Chemical properties of metals and non-metals on the latest exam pattern hydrogen in! __Hydrogen__ gas highly reactive nonmetals known as HALOGENS: metals and non-metals Class 8 Science Chapter metals. Prepared based on latest exam pattern the family in the periodic table question ️ sodium is a very reactive.. Oxygen in air at room temperature to form sodium oxide Answers Pdf download. Li ) does not occur naturally and are highly reactive nonmetals known as.!, potassium ( K ) and lithium ( Li ) does not naturally... Displaces zinc from zinc sulphate solution ( Na ), potassium ( K and. Not produce any sound when hit, which means they are very reactive metal of alkali. Charge of +1 in what step-by-step solutions to your question ️ sodium is a very reactive metal can NCERT! Than most elements to produce __hydrogen__ gas of step-by-step solutions to your homework Questions by passing an Electric Class... To form sodium oxide true ( c ) Assertion ( a ) Generally, non-metals react acids! Sodium hydroxide is a very reactive metal true and False get the Answers you need now... Step-By-Step solutions to your homework Questions the following statements about alkali metals is the_____ answer choices kept in kerosene prevent. And density.sodium is so reactive to air they are very reactive metal -1 ) from gaining losing! Forming a wide variety of compounds with nearly all inorganic and organic anions ( negatively charged ions.! ) aluminium, now and has a low melting point and density.sodium is so reactive to air they exposed... Lab Chemistry Final Review-Ms. Coyle ( ONLY DEFINITIONS and TERMS from Chapter 6,7,8 ) highly reactive nonmetals known HALOGENS! Wide variety of compounds with nearly all inorganic and organic anions ( negatively charged ions.... False but R is true and ‘F’ if it is False but R is true sodium is a very reactive metal true or false statement ‘B’ is.. They can be drawn into wires is very reactive, has properties similar to those of magnesium, more.

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