Science Quiz

a metal which burns with a purple / lilac flame

• K

• Na

• Mg

• Sulphur

why gold doesn't react with acid?

• bcoz it is non reactive

• bcoz it's reactivity is less that the reactivity of Hydrogen

• bcoz gold is not basic

• bcoz gold is non-metal oxide

which of the following is a close chained carbon compound

• a) Butane

• b) pentene

• c) cyclo propane

• d) Ethylethanoate

Which one of the following is the a unit of power

• a) volt

• ampere

• watt

• kilowatt-hour

What is the name of the fluid which is present between meninges is our brain

• Neurotransmitter

• Water

• cerebrospinal fluid

• lymph

Ethanol reacts with sodium and forms two products. These are

• sodium ethanoate and hydrogen

• sodium ethanoate and oxygen

• sodium ethoxide and oxygen

• sodium ethoxide and hydrogen

Non-metals do not replace hydrogen from acids because:

• They are more reactive than hydrogen

• They are less reactive than hydrogen

• Non-metal being acceptors of electrons.

• None of these

To make all connections airtight, in the experiment, we use

• Lubrecants

• Wax

• Either vaseline or wax

• vaseline

Binary fission in some organisms occurs in definite orientation in relation to the cell structures. One such organisms is:

• Leishmania

• Plasmodium

• Amoeba

• Bacteria

We will observe white ppt in which of the following reaction?

• Barium chloride is mixed with hydrochloric acid

• Barium chloride is mixed with sodium chloride solution

• Barium chloride is mixed with sodium sulphate solution

• Barium carbonate is mixed with sodium sulphate solution