What colour do you choose?
Methyl Orange in base
Yellow
Identify the most and least reactive elements:
X + YA --> XA;
YX + YB --> XB;
YZ + XA --> ZA + X
Z and Y
Try to scratch me and I will scratch you back. I am a non-metal.
Diamond
2070
Ferrous Sulphate
Green
A famous chemist was found murdered in his room today. The police have identified four possible murderers: Gregory, Fernand, Nicolas, and Felice. They know that two people did it. A note was found lying next to the body in the chemist's handwriting:
28-27-57-16; 26-3-58. Who are the killers?
Nicolas and Felice
Copper Carbonate or Malachite
I am a non-metallic base
Ammonia
Huge deposits of this metal were found in Sonbhadra, UP shortly before the lockdown of 2020 began. What is this metal?
Gold
Flourine
Pale yellow
Metal M reacts with oxygen to form a metallic oxide MO. This oxide reacts with moisture and carbon dioxide of the atmosphere to form a greenish blue basic carbonate. The metal ‘M ’ is
Copper
https://drive.google.com/file/d/1h6N3LuBb_Km2pJhtx3usGoNeVpx26uKk/view?usp=sharing
What is happening?
What does it tell you?
Flame test, Lilac indicates K+ ion
I am a powder used to make paneer and rosogollas by curdling milk.
Citric acid
This drug was used initially as a prophylaxis to prevent COVID-19 infection among the medical community. It is also used to treat malaria. Effective prevention of this drug has been questioned since.
Hydroxychloroquine
Potassium Permanganate
Purple
A powdered salt X was heated in a test tube. It evolves brown fumes of nitrogen dioxide and a yellow residue was also formed. The salt (X) is
Lead Nitrate
https://drive.google.com/file/d/1h2y7Bako0hGDSjyZyJJ56TUeb2qjjbJO/view?usp=sharing
What is going on here?
Fractional Distillation / Fractionating column
I am a salt who smells. My parents are a weak acid and a weak base. Hint: My parent acid is FANTAstic.
Ammonium Carbonate
This chemical caused a huge explosion at a port in August last year. Identify the place and the chemical.
Beirut, Ammonium Nitrate
Potassium Chromate
Yellow
A white solid powder was used to poison fish in those days. The white powder was made using capped vials of the cation and anion. Tight, capped vials were used so that the elements did not spill out during the journey.
What are the two elements that are the cation and anion?
Mercury, Bromine
Don't hurry! Who am I?
Gallium
You have heard of blue litmus turning red, and red litmus turning blue. You will turn green with envy when you know: I turn litmus paper white.
Chlorine
The production of this chemical grew 1000 times during the COVID 19 pandemic in India. Surplus rice was used to make it and even export it. Give its exact name.
Ethanol or ethyl alcohol