 तो ना उ students, क्यासे है आाब लोग? तो अज, हम कुच, केंमिकल दीऊश्य के कुच तो औरूएं कि कि बाटकरने लाग है. और से, हमने पुराने तरी भीटिझोश में कुच क्यकृशैून्स डिजश क्ये है, रही? तो आज़े ही ज़ए अगे बते हैं आजकी भीटेो के साथ में और आज हम थ्चाट करेंगे तर्टी फास च्फुअशन से टिके, क्यों? क्यों कि... अप तो टर्टीः, मैं पहले सारे वीटेोस में दिस्टल्ष कर चोगी हो एना अगर अभिन नहीं देखाओगा, then प्लूँँ, अगर जो दो आयक अद, इस थकर् Mask, but if you didn't watch it, then please watch the first and second video atkis. ती के, फिर्षt videos मैं, भिव्दिू मैं वेदिम मैं, मैं एशारे बजेत ख्छ्एक। Okay, I have explained all the basics of the videos. आओई. चालओ खन्तिन्य। Right. Okay, let's continue. आज कत 30 फ़ स्वाच्यशाः ता वास्या थी कॉत्पर था इग्स अज नो तरी कनवरज चीओ नो तरी कनना वोत हैं ये जी चरीद दोए अग़ी ता प्र नरी. तो बैसेकृन लिए का आवश़ करता है कुझरुल कोई लैस पर च्रुर कोग भीनी था देख लिक. see the balancing rule is what we all have learnt first we have to balance all the items on the reactant side, on the product side but because now we are solving mły we have options here so can we use a short stay that the numbers here the numbers that are given here keep that and see if it balances let's try it fast अगर if i put 3 here in hnu3 site lets say 3 here ok and 1 here तो मैरी कुशिन बलाश ही गे लिक्वार चेख करते हैं रिएडौजन 3, निटौजन 3 ok निटौजन 1 नहीं एकुशिन द बलाश नहीं हुई बिकुस वाए वन कर नहीं? तो यह अव्चन तो रोंग होग होग्या बेसा तुम उज़े पहडा, मेंगा और ग़ा आप अगर तूर सेवन और वन, तू वन मेंगा तूर जन उवार जन आप ऑ़. here hydrogen sulphide is an oxidizing agent, reducing agent, catalyst of providing an inert medium आज ज़ो देखते हैं क्या करेक्तो सकता हैं पहली चीस यहापर oxidizing agent तो reducing agent के बात की हैं तो पहले जलती से एक बार, oxidization number check कर लेते हैं I hope you all have learnt oxidation number, how to calculate oxidation number 2H2O, 2H2O plus 3S so now if I come to this question what we will using? we will calculate our oxidation number see how will we do here potassium is always ! so how much will be Lorenzo ? 2 plus 2 plus 2x minus 14 तो मुझे एकसका वाल। find out करना हैं तो कितना आयागा? एकसका वाल। should be here 14 minus 2, 12 divided by 2, 6 plus 6 खरेग दाख मेंस, ख्रोम्यम अप्सटीशन नमबर I have got is what? plus 6 ख्रोम्यम अप्सटीशन नमबर I have got is what? plus 6 ख्रोम्यम अप्सटीशन नमबर I have got is what? plus 6 वालो... कु Unters कितना हो भाप्ससा क znajdu क्सका लगी हैं अप्सटीशन नमबर two is लेके हमारे पास 3 सल्फेट आयान है, तो this 2 should be multiplied by 3. है नहीं होगा नहीं. औरे, क्या बाते है? मेरे इरेजर is not working. आप, नहीं होगफुले it should work. जो लो, तो यहाँ पर क्या एक को 3 से multiply करना है. आप, 3 into minus 2. ती के अभी क्या हो जाए का? मैंगडीजर, पहुत अपोखो. और बब औब प्रोड्ँग सब नहीं होगे पास 3. अप अब पच्गट मबा होगा होगा रही, अप मैंवार बावर में वगा देखुग बावर होगा. in any of its compound so example, sorry options what is boron boron is its negative oxidation state its positive oxidation state it can be bf3, if i say compound bf3 so fluorine here, fluorine is negative so what will be boron, it will be positive it is minus 1 so it will be minus 1 into 3 this will be plus 3 correct, now if i talk about oxygen so oxygen B minus 2 plus 1 plus 1 oxidation state correct, that is possible if we talk about chlorine so chlorine also comes in positive oxidation state if you have heard the name of hypochlorous acid hypochlorous acid hypochlorous acid at C-L-O what happens in this is chlorine is in positive oxidation state this is minus, hydrogen plus 1 and chlorine is available in one positive oxidation state so now what is left is fluorine now note one thing fluorine is the most electronegative element so its oxidation number will never be positive till now no compound has come which shows fluorine positive oxidation state correct so when such a question will come then without thinking there is no need to think about the compound oxygen and chlorine there is no need to think about it in fluorine option click on fluorine fluorine can never have positive oxidation state done, next question amino acid formed by decomposition of which of the compound okay, carbohydrate, starch, protein or fat so amino acid amino acid whose monomer is it what is made of amino acid okay, what is made of amino acid protein in our body okay, what is made of amino acid protein so when my body will digest protein will break down of protein what will it get amino acid will get because small molecules of amino acid combined with protein so when I will break all the bonds of amino acid then what will happen protein will be separated in amino acid so what does protein decompose after being digested so correct answer should be what C protein carbohydrate, starch etc after being digested after being decomposed we make glucose okay right and this is made of amino acid okay, so we will see next question loss of electron is called now loss of electron loss of electron what happens give some pressure on mind think what happens again and again question comes in every video I explain again this time I am not going to explain you have to think what happens think let's use one short form for this oil and rig or if I write it like this oil rig oil is loss of electron oxidation is loss of electron oil is oxidation is loss of electron okay oxidation are oxidation oxidation is loss of electron oil oxidation is loss of electron okay rig reduction is gain of electron so let's write it on reduction reduction is gain of electron so oxidation is loss of electron reduction is gain of electron now tell me what is the answer my child is not so duffer what is the correct answer b loss of electron is called oxidation let's move on to next question okay in 37th question we have assertion and reason assertion and reason many students tell me ma'am it is very difficult many options are correct how to understand is the reason correct explanation or not so what is the most important thing for this is that you have to practice many questions as you practice questions then concepts will be clear concepts will be clear then there will be confidence then what will happen so are you sure that explanation is correct reason or not or is the reason correct explanation or not 37th question we have assertion copper oxide react with hydrogen and form copper and bottom it is a redox reaction copper is losing oxygen hydrogen is gaining oxygen oxidation is happening definitely this is our redox reaction assertion is correct next reason inner redox reaction ten is reduced by accepting electron reductant is reduced by accepting electron and oxidant is oxidized by losing electron oxidant is oxidized by losing electron so see first reductant reductant called reducing agent what is this? reducing agent and what is oxidant? oxidizing agent Now reducing agent. reducing agent what happens is reducing agent is a substance which gets oxidised Because reducing agent of the agent forces the opposite It's a form of a reduction You don't want to do a reduction to the opposite So reducing agent is reduced Then reducing agent is oxidised Do you understand what I'm explaining? भुज्किया करेगा अब खुत्त्तो, इलेक्रून दूस कर के सामने वाले को देदेगा और सकर रडक्छन तुजाएका ये होता है. और इसका अपोजट ये अप्सटेट में तोई ईिसके ही साप से, ऎरमारा एक्षाम, गलत होंग, रवंग होगग Revelation Aparchy is our reason, what is wrong तो अप में यांप случаे बोबाँ Nнить these options what is at the end Awards which are Philanthophora असर्षşam त Crisis is truth but reason is false असर्स Equity is correct but reason is false आसर्सम तotypes करेथ है But reason is false जद्खंग बाने contraryovy असर्स्शन ज summon is correct but reason is false रीजन is the correct explanation of assertion नहीं रीजन तो तु है ही नहीं नहीं, both assertion and reason are true बाड, reason is not correct explanation of assertion नहीं रीजन तु है ही नहीं तो c-option correct होग्या last d-option भी देख लेते हैं if both assertion and reason are false assertion and reason are false तु रीजन तो correct है नहीं ज़ो अभी भी अगर कोई confusion है नहीं और अख्स्टर आजेंट तो क्या खरोगे पहले अख्सटिट्चना आए लिएग बाड देखना फिल अख्सरटाजीं अजेंट येए रिजन का यावला कौई़जन सुल करना मुहत आराम से नहीं आजाएका ज़ो जल्दी से निखस्वेशन पे मूँप करते है 38 questions Assertion Again Assertion में क्या है When a zinc rod is dipped in a solution of copper sulphate तीके भाई बहले में एक बार इमाजन कर लती हूँ कि ये में पास कोपर सल्फेट है See you as a phone मैंने इस में क्या कर हैं Zinc डाल दिया है Zinc rod dissolves partially and its surface is coated with copper metal Because zinc is more reactive than copper In this condition zinc will replace copper from copper sulphate solution And it will make zinc sulphate plus copper metal So copper metal will stick to its zinc rod Assertion is correct Now let's see the reason What is our question This reason is due to the presence of sulphate ion This reason is due to the presence of sulphate ion There is nothing happening to the presence of sulphate ion There is nothing happening to sulphate ion Zinc is reactive That is why the equation is closed That is why the reaction is done So the reason is wrong This is wrong I don't know the reason I am getting angry Now A, B, C Again I want to know the reason Assertion is true but the reason is false The reason is wrong What should be the reason Zinc is more reactive This is happening because zinc is more reactive than copper If this would have been the case Then we would have gone to the A option Assertion is correct And reason is correct Did you understand Are you confused If you are confused Reverse a little See you in slow motion Next Let's see the job We have 39 questions Assertion is the reason Assertion says that H2S reacts with oxygen to form sulphur and water Fine Let's see the reaction H2S plus O2 It forms what? Sulfur plus water If you see the reaction Then you will know See what is happening This is converting into sulphur By loss of hydrogen By loss of hydrogen That means for oxidation Oxygen means water That means gain of hydrogen Gain of hydrogen means what? Reduction What is happening here Loss of hydrogen, gain of hydrogen Oxygen reduction These are happening The reason is Oxygen involves removal of hydrogen Reduction involves addition of hydrogen We have got the correct reason Did it come or not Assertion means both are true And the reason is My correct explanation of Assertion A option is Absolutely right A option is correct answer Let's see the 40th question What is it? Wait a minute Assertion We have SO2 and chlorine Sulfur dioxide and chlorine Both are reducing agent Both are reducing agent Both are reducing agent Both are reducing agent See Sulfur dioxide Sulfur dioxide But it gives temporary bleaching And temporary bleaching It reduces the colour of our particular compound That is why it gets temporary Bleaching So it shows bleaching action Due to reduction Of the coloured compound Right By reducing By reducing Other compound But if I talk about chlorine So chlorine is also good reducing Bleaching agent But its bleaching action Works on oxidation reaction See how Try to understand me When we use chlorine powder We use chlorine powder We react with water And produce nascent oxygen That oxygen's one atom Which is very reactive So it produces nascent oxygen What does nascent oxygen do We react with coloured compound And remove colour from it That's why this is what Permanent oxidation And why is this Because of oxidation Or by oxidation Oxidation Process Correct So that means There will be one reducing agent One oxidizing agent The reason is not correct There is option C The reason is true But the reason is false That's why my option C Is the correct answer Right So today's 40 questions done I will come with Next ten questions See you take care Take care Do your work And post your doubts in comments Bye