English

In preparation of Aqua regia hydrochloric acid and _______ acid are mixed. - Science and Technology 1

Advertisements
Advertisements

Question

In preparation of Aqua regia hydrochloric acid and _______ acid are mixed.

Options

  • sulphuric acid

  • nitric acid

  • carbonic acid

  • phosphoric acid

MCQ
Fill in the Blanks

Solution

In preparation of Aqua regia hydrochloric acid and nitric acid acid are mixed.

shaalaa.com
  Is there an error in this question or solution?
Chapter 8: Metallugy - Choose the correct option.

APPEARS IN

SCERT Maharashtra Science and Technology 1 [English] 10 Standard SSC
Chapter 8 Metallugy
Choose the correct option. | Q 15

RELATED QUESTIONS

How will you obtain Zinc chloride from zinc.

Also give balanced equations for the reactions


Write the chemical equation for the event.

A reaction was brought about between ferric oxide and aluminum.


Divide the metals Cu, Zn, Ca, Mg, Fe, Na, Li into three groups, namely reactive metals, moderately reactive metals and less reactive metals.


State what is meant by the ‘reactivity series of metals’


With reference to Water explain with suitable examples of how the reactivity of the metals could be differentiated.


Select the correct answer for the statement given below:

The catalyst used in the catalytic reaction involving the reactants nitrogen and hydrogen.


Complete the statement by filling in the blank with the correct word:

The metal which reacts with steam and the reaction is reversible is ________.


Explain the following reaction with the balanced equation.

Sodium burns in air


Explain the following reaction with the balanced equation.

Reaction of aluminium with oxygen


Explain the following reaction with the balanced equation.

Magnesium reacts with dil HCl


Observe the following diagram and identify the type of reaction and write observation.


Which of the following is the correct arrangement of the given metals in ascending order of their reactivity?

Zinc, Iron, Magnesium, Sodium


Which among the following statements is incorrect for magnesium metal?


An element A reacts with water to form a compound B which is used in white washing. The compound B on heating forms an oxide C which on treatment with water gives back B. Identify A, B and C and give the reactions involved.


Explain the following

  1. Reactivity of Al decreases if it is dipped in HNO3
  2. Carbon cannot reduce the oxides of Na or Mg
  3. NaCl is not a conductor of electricity in solid state whereas it does conduct electricity in aqueous solution as well as in molten state
  4. Iron articles are galvanised.
  5. Metals like Na, K, Ca and Mg are never found in their free state in nature.

An element A burns with golden flame in air. It reacts with another element B, atomic number 17 to give a product C. An aqueous solution of product C on electrolysis gives a compound D and liberates hydrogen. Identify A, B, C and D. Also write down the equations for the reactions involved.


Metal ‘A’ has electronic configuration 2, 8, 1 and metal ‘B’ has electronic configuration 2, 8, 8, 2. Out of these, which metal is more reactive? Write the reaction of this metal with dilute HCl acid.


Arrange the following as per the instruction given in the bracket:

Al, K, Mg, Ca (decreasing order of its reactivity)


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×