What was the first nuclear-powered submarine?

What was the first nuclear-powered submarine? USS Nautilus The first nuclear-powered submarine, USS Nautilus, put to sea in 1955. This marked the transition of submarines from slow underwater vessels to warships capable of sustaining 20-25 knots submerged for weeks on end. When was the first atomic submarine? The world’s first nuclear-powered submarine was USS Nautilus, […]

What is Liebermann nitroso amine reaction?

What is Liebermann nitroso amine reaction? Answer: When phenol is reacted with NaNO2 and concentrated H2SO4, it provides a deep green or blue colour which changes to red on dilution with water. Generated substance in presence of NaOH / KOH restores original green or blue colour. This reaction is termed as Liebermann’s nitroso reaction. Which […]

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