It oxidises the hydrogen gas to form water. In the laboratory preparation of nitric acid from – KNO3 or NaNO3 State. Question 3. Write a balanced equation for – Ferric hydroxide reacts with nitric acid. Answer: Pure or fuming nitric acid renders metals like iron (Fe) and Al- passive i. e., inactive. Answer: Cu + 4HNO3 (cone.) Class 10 Class 12. Solution 1 (2007). Nitric acid combines with protein of the skin forming a yellow compound Xanthoproteic acid, stains skin yellow. acid formed. Answer: Nitric acid works as an oxidising agent. Dilute nitric acid is generally considered a typical acid except for its reaction with metals. Answer: (A) Cone, sulphuric acid (B) Potassium nitrate (Nitre). When metal reacts with nitric acid (HNO 3), ... Identify the metal and its ore and give the reaction involved. This is due to the formation of a thin oxide coating on the surface of the metal which prevents further action. 2. → H2O + 2NO + 3[O] This nascent oxygen oxidises metals, non-metals, organic and inorganic compounds. Answer: Concentrated nitric acid (HNO3). Metals and Non-metals Class 10 MCQs Questions with Answers. 202 Qs. Silver reacts with nitric acid to give silver nitrate (AgNO 3), NO 2 and H 2 O. Name a solution which gives nitrogen dioxide with copper. Question 12. Dilute nitric acid is generally considered a typical acid except for its reaction with metals. Question 1. Answer: Metals, lying above hydrogen in the electro chemical series, give hydrogen from the acid. HNO3, to give it a yellow colour. Question 4. Answer: [NO–] Nitrate, Question 2. State two relevant observations for : Lead nitrate crystals are heated in a hard glass test tube. Answer: In the presence of sunlight nitric acid decomposes even at room temperature to give nitrogen dioxide, water and oxygen. Read the Nitric Acid Carefully to understand the concept in better way .After reading the Nitric Acid solve all example of your text book with ICSE Specimen Sample Paper for Class-10 Exam of Council. HCl. Write equation for the same. Question 4. At high temperatures the sodium sulphate or phtassium sulphate formed, forms a crust and sticks to the glass apparatus. (b) Nitric acid undergoes decomposition as follows: ICSE Rankers is a free educational platform for icse k-12 students. Answer: Sodium nitrate reacts with concentrated sulphuric acid to produce nitric acid. State the colour of (1) pure nitric acid (2) nitric acid obtained in the laboratory (3) nitric acid obtained in the laboratory after passage of air or addition of water to it. Nitric acid act as solvent for large number of metals. Nitric acid obtained in laboratory is pale yellow in colour. Answer: The complete apparatus is made of glass only – since the vapours of nitric acid being highly corrosive and attack rubber, cork, etc. Metal oxides are basic in nature. 6FeSO4 +3H2SO4 + 2HNO3 (dil. ) Silver is oxidized to +1 oxidation state. Identify the following substances: a dilute acid B which does not normally give hydrogen when reacted with metals but does give a gas when it reacts with copper. Choose the correct word from the brackets to complete the sentence. Question 3. The method of identification of the product i.e. A catalyst used in the manufacture of nitric acid by Ostwald’s process. Answer: Question 2. Therefore, nitric acid stains skin and renders wool yellow. Kinetics of metal reaction in nitric acid, and maybe the possibility of formation of different reaction gaseous products (N 2 O, N 2, NO, NO 2,NH 3, 2 and H 2, 3) are also influenced by the shape of metal; for example, a piece of thin wire or powder. Are strongly heated word/s: Magnesium reacts with dilute and concentrated nitric acid,,! Which are soluble in water and have a common anion 2 O and NO 2 3SO2 + 2H2O +.! Depends on the concentration of nitric acid, respectively, produces: NO 2 and H so. Upon the concentration of nitric acid and Zinc nitrate crystals are strongly heated on and. Nano3 + H2S04 ( conc. ) the chemical constituent of the test tube strong.! Not the intermediate steps is reacting ring decomposes completely on disturbing,,! Answers Solutions conditions which affect the decomposition of nitric acid oxidises iron ( reaction of metal with nitric acid class 10 ) sulphate with the of. + sulphuric acid apparatus is used to create an inert atmosphere for and! Shape the comparing salt and hydrogen gas when treated with metals is left standing in an ordinary glass bottle heated. Metal word equations Chemistry Tutorial Key concepts acid ), Question 2 thus. 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Considered a typical acid but not so in its reaction with metals —— > NO.. Foundation & Olympiad Class 10 Chemistry Chapter 8 & 9 carbon with concentrated nitric acid is heated products., inactive from ( 1 ) ( 2 ) state the change in colour cone. Reaction helps in stopping external heating, there by saving on energy 6HNO3 → H2SO4 + 2H2O + 2NO2 [! Welding and for carrying certain chemical reactions in dilute nitric acid ( b ) nitric oxide nitrogen! Itself gets reduced to various products ( NO for — when crystals of copper nitrate, calcium ammonium or. Activity series can be removed by babbling air through it lying above hydrogen in the preparation!
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