Advertisements
Advertisements
प्रश्न
Which of the following is not an “element + element → compound” type reaction?
पर्याय
C(s) + O2(g) → CO2(g)
2K(s) + Br2(l) → 2KBr(s)
2CO(g) + O2(g) → 2CO2(g)
4Fe(s) + 3O2(g) → 2Fe2O3(s)
उत्तर
2CO(g) + O2(g) → 2CO2(g)
APPEARS IN
संबंधित प्रश्न
How do the following help in bringing about a chemical change?
pressure.
FILL IN THE BLANK
The new substances formed during a chemical reaction are called the ..................
A chemical equation is a statement that describes a chemical change in terms of
Out of sodium and sulphur which is a metal? Explain its reaction with the oxygen.
Multiple choice:
A reaction of a type: AB + CD → AD + CD, involves
Give balanced equation for the following conversion affected by heat alone on the substance:
Zinc carbonate to zinc oxide
Complete the table given below.
Addition of dil. H2SO4 to KHCO3 | Name of residue obtained |
A reaction between an acid and a base is called ______.
What is the use of indicator?
State whether the following statements are true or false:
When a candle burns, both physical and chemical changes take place.