Contents

What happens when vinegar is mixed with baking soda?
 a) the beaker became hot                               
b) the beaker became cold
c) the beaker became hydrated

d) none of these

a
Comments :

I think Option B will be correct

by at 2024-10-12 21:30:30

You think wrong

by at 2025-03-05 21:22:44

by at 2025-03-05 21:22:57

by at 2025-03-25 18:17:05

please login to comment

A chemical reaction that evolves heat or light into their surroundings is called……..reaction.
a) decomposition                

b) displacement
c) endothermic                    

d) exothermic

d

Explanation:n thermodynamics, the term exothermic process describes a process or reaction that releases energy from the system to its surroundings, usually in the form of heat, but also in a form of light, electricity, or sound.


Which of the following is/are evolved during exothermic reaction?
a) H2O

b) heat  

c) light   

d) both b and c

d

Exothermic is basically…….word.
a) Greek                                               

b) Russian
c) English                                              

d) Dutch

a

“Exo” is a Greek word which means?
a) to absorb                         

b) to evolve
c) to gain                                              

d) to attract

b

“Therm” is a Greek word. What does it means?
a) light                                   

b) heat
c) water                                 

d) vapors

b