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प्रश्न
______ react with dil. HNO3 to evolve hydrogen gas.
विकल्प
Iron and copper
Manganese and magnesium
Zinc and manganese
Aluminium and magnesium
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उत्तर
Manganese and magnesium react with dil. HNO3 to evolve hydrogen gas.
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संबंधित प्रश्न
Give the structural formula of ethanol.
The compound formed when ethene reacts with Hydrogen is ________. (CH4, C2H6, C3H8)
Identify the term/substance in the following:
The catalyst used in the conversion of ethyne to ethane.
State one relevant observation for the following
When the gaseous product obtained by dehydration of ethyl alcohol is passed through bromine water.
Fill in the blanks from the choices given within brackets:
The compound formed when ethanol reacts with sodium is____ (sodium ethanoate, sodium ethoxide, sodium propanoate).
Give the harmful effects of drinking alcohol.
What happens when ethanol is heated with concentrated sulphuric acid at 170°C? Write the equation of the reaction which takes place.
List in tabular form three physical and two chemical properties on the basis of which ethanol and ethanoic acid can be differentiated.
Write the balanced equations to convert:
(a) Ethanol to ethene
(b) Ethene to ethanol
Write the rnolecular formula and structural forrnula of ethanol.
Name a solid which can be used, instead of conc H2SO4 to prepare ethylene by dehydration of ethanol.
Give the structural formula of the following:
Ethanol
From the given list, name the compound with −OH as part of its structure.
Convert ethanol into ethene using a solid dehydrating agent. Give only a balanced equation.
Write the equation for the following lab preparation:
Methanol from iodomethane.
C2H5OH + 3O2 → 2CO2 + 3H2O is a ______
Give the balanced chemical equation of the following reaction:
Oxidation of ethanol by acidified potassium dichromate.
Give the balanced chemical equation of the reactions.
Neutralization of NaOH with ethanoic acid.
Give the balanced chemical equation of the following reaction:
Oxidation of ethanol by acidified potassium dichromate.
