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Sanskriti Sharma 3 years, 9 months ago

The conversion of propanal to propane is a reduction reaction. This involves the reduction of an aldehyde into a hydrocarbon. There are two methods namely: 1.Clemmesen reduction:The carbonyl group of aldehyde or ketone is converted into CH2 group by treating with Zinc-Amalgam(Zn-Hg) and concentrated hydrochloric acid.   2.Wolf-Kishner reduction:The carbonyl group is converted by the action of hydrazine(NH2-NH2) with KOH or NaOH in high boiling solvent such as ethylene glycol.   Conversion of propanal to propane can be done by any of the following steps. CH3-CH2-CHO→Zn-Hg and conc HCl CH3-CH2-CH3
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Prabhanjan Badkas 3 years, 9 months ago

@mrinmoy lol..hhaha

Mrinmoy Das 3 years, 9 months ago

Pata nhi
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Kashish Haritash 3 years, 9 months ago

2.303 nRT logV2/V1 in isothermal

Khushi Tanwar 3 years, 9 months ago

Isothermal

Kowshik .P 3 years, 9 months ago

I don't know
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follow. 1. The first crisis the lunar explorers faced came just short of moonfall. The Apollo 11 Lunar Module, code – named ‘eagle’, was still 9.5 km (6 miles) up when the vital guidance computer began flashing an alarm. It was overloading. Any second it could give up the ghost under the mounting pressure and nothing the two astronauts could do would save the mission. Emergencies were nothing new to Commander Neil Armstrong but he and his co – pilot Buzz Aldrin hadn’t even practised for this one on the ground – no one believed it could happen. Sweeping feet first towards their target, they pressed ahead as controllers on Earth waited heart – in – mouth. Racing against the computer, Eagle slowed and then pitched upright to stand on its rocket plume and gave Armstrong his first view of the landing site. The wrong one! They had overshot by four miles into unfamiliar territory and were heading straight for a football field size crater filled with boulders “the size of Volkswagens”. 2. With his fuel running out, and only a minute’s flying time left, Armstrong coolly accelerated the hovering Eagle beyond the crater, touching 88 kph (55mph). Controllers were puzzled and alarmed by the unplanned manoeuvres. Mission Director George Hale pleaded silently: “Get it down, Neil. Get it down.” The seconds ticked away. 3. “Forward, drifting right,” Aldrin said. And then, with less than 20 seconds left, came the magic word: “Contact!” 4. Armstrong spoke first: “Tranquility base here, the Eagle has landed.” His words were heard by 600 million people – a fifth of humanity. 5. About six and a half hours later, Eagle’s front door was opened and Armstrong backed out onto a small porch. He wore a €200,000 moonsuit, a sort of thermos flask capable of stopping micrometeoroids travelling 30 times faster than a rifle bullet. He carried a backpack which weighed 49 kgs and enough oxygen for a few hours. Heading down the ladder, Armstrong unveiled a €200,000 TV camera so the world could witness his first step: “That’s one small step for a man, one giant leap for mankind.” It was 3.56 am, 21 July, 1969. 1.1On the basis of your reading of the passage make notes on it in points only, using abbreviations wherever necessary. Supply a suitable title. 1.2 Write a summary of the passage in 80 words.
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Anish Thakur 3 years, 9 months ago

Ye Question h
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Ayush Bidhuri 3 years, 9 months ago

Meji introduce railway in Tokyo
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Rudra Pratap Singh 3 years, 9 months ago

Ur Didier ri
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E.Shivani Nair 3 years, 9 months ago

ncert.nic.in->textbooks->ebook->pdf(i-xii)..fill the details

Izumi Uchiha 3 years, 9 months ago

Go to @jeeneetadda channel on telegram..... It'll be helpful, I hope soo?????????

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