Advertisements
Advertisements
प्रश्न
Fill in the blank
The chemical reaction between hydrogen and chlorine is a ................ reaction
उत्तर
The chemical reaction between hydrogen and chlorine is a combinaton reaction.
APPEARS IN
संबंधित प्रश्न
One of the following is an endothermic reaction. This is:
(a) combination of carbon and oxygen to form carbon monoxide
(b) combination of nitrogen and oxygen to form nitrogen monoxide
(c) combination of glucose and oxygen to form carbon dioxide and water
(d) combination of zinc and hydrochloric acid to form zinc chloride and hydrogen
What type of reaction is represented by the following equation?
2 Ca + O2 → 2CaO
Fill in the blank
A reaction in which two or more substances combine to form a single substance is called a ............ reaction.
What are chemical combination or synthesis reactions ? Chemical combination or synthesis:
What effect does an increase in concentration of H+ (aq.) in a solution have on the pH of solution?
Define a combination reaction. Give one example of an exothermic combination reaction.
Which of the following is not a physical change?
In which of the following chemical equations, the abbreviations represent the correct states of the reactants and products involved at reaction temperature?
The chemical reaction between copper and oxygen can be categorized as ______.
Read the text below and answer the questions that follow:
A small amount of hydrochloric acid was taken in a test tube. The test tube was heated. A glass rod was dipped in the ammonia solution and held on the top of the test tube. A white smoke was seen emanating from the tip of the glass rod.
- What must have happened?
- Which colour of gas is formed?
- Write the chemical equation for the reaction.
