1. Ethene is a natural gas produce in plant, which act as natural ripening agent of fruits. Which of the ff organic compound has the same ability to ripen fruits?

1. Which are true about the use of isopropyl alcohol?

1. Romeo has to remove the red paint in the paintbrush so that he could still use it again next time. What organic compound should he used to remove the paint in the paintbrush?

5. The formula that indicates the total amount of atoms of elements in compound is the________

1. Which of the following is not a noble gas?

A gas law that describes the relationship of pressure and volume is

The nucleus of an atom consists of

The number of moles of solute present in 1 kg of a solvent is called its

The material which can be deformed permanently by heat and pressure is called a

The method that cannot be used for removing permanent hardness of water is

The main chemical constituent of the oil of cardamom which is responsible for flavour of this oil is

The hardest form of carbon is

The hottest part of the gas flame is known as

The method of concentrating the ore which makes use of the difference in density between ore and impurities is called