Soaps are ______ based soapy detergents.

Detergent is

1. Sodium stearate
2. Sodium alkyl sulfonate
3. Gasoline
4. Potassium pentanoate

The non-metallic element that is purple black color is

1. Iodine
2. Chlorine
3. Graphite
4. Aluminum

Which of the following solvents does iodine dissolve?

1. 
2. Carbon chloride
3. Hcl
4. Water

Which of the following are the allotropes of carbon?

1. Graphite
2. Diamond
3. Both A and B
4. None of these

Which is the 5^th rare gas present in the atmosphere?

1. He
2. Ar
3. Ne
4. Xe

Under standard temperature and pressure (STP) conditions, neon exists as

1. Monoatomic gas
2. Diatomic gas
3. Triatomic gas
4. Tetra atomic gas

_______ is the first and lightest noble gas.

1. Ne
2. Ar
3. He
4. Kr

Among the following, the element possessing a low melting point is

1. Metals
2. Non-metals
3. Metalloids
4. None of the above

Which of the following is a property of a non-metal?

1. Conducts electricity and heats well
2. Can be hammered into thin sheets
3. Is brittle and breaks easily
4. Has a shiny, metallic luster

This group of elements has properties that are opposite those of metals. ______________________

1. Luster
2. Non-metals
3. Metalloids
4. Metals

Which of the following electronic configuration represents chlorine?

1. 
2. 
3. 2,8,7
4. All the above

Chlorine element is less reactive than fluorine and more reactive than__________.

1. Bromine
2. Nitrogen
3. Sodium
4. Potassium

____ number of elements are present in the noble family.

1. 5
2. 6
3. 7
4. 4

Which element is found in Group 17 and is the most reactive non-metal?

1. Chlorine
2. Argon
3. Fluorine
4. Magnesium

Which noble gas has 18 protons?