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प्रश्न
Write the name.
The reagent which dissolves noble metals.
उत्तर
The reagent which dissolves noble metals- Aqua regia
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संबंधित प्रश्न
Which of the following statements is correct?
Choose the correct answer from the options given below:
Anhydrous iron(III) chloride is prepared by:
1) direct combination
2) simple displacement
3) decomposition
4) neutralization
Name the metal which is the poorest conductor of heat.
Name two metals which are both malleable and ductile.
Name two metals whose melting points are so low that they melt when held in the hand.
Metals are said to be shiny. Why do metals generally appear to be dull? How can their brightness be restored?
Name a non-metal which is extremely hard.
Which of the following metal exists in the liquid state?
(a) Na
(b) Ag
(c) Cr
(d) Hg
Name a metal used in making electric cables
Give reasons
Impure diamond is used to cut glass
Name the metals present in the following alloys
Stainless steel
Fill in the blank
A chemical compound that makes up the striking heads of match sticks is .........................
What do you understand by the term metal?
What is an alloy?
Name a liquid non-metal.
Match the following:
| Column A | Column B |
| (a) Helium | (1) Electric bulb |
| (b) Neon | (2) Thermometer |
| (c) Argon | (3) Semiconductor |
| (d) Germanium | (4) Weather balloons |
| (e) Mercury | (5) Advertising signboards |
Give reason for the following:
Metals form cations while non-metals form anions.
Identify who I am!
Metal in Liquid state- _______
______ is the only non-metal which conducts electricity.
Alloys are homogeneous mixtures of a metal with a metal or non-metal. Which among the following alloys contain non-metal as one of its constituents?
