CAT Questions

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Isotopes are atoms of the same element that have different mass numbers.

Example : Hydrogen, Deutirium and tritium all these have different mass but same atomic numbers.

The two elements that are used to make bronze are tin and lead.

In all the above given options, there is no chemical change or reactions takes place only the shape or physical state is changed.

The chart of accounts is designed to to meet the information needs of a company and other financial statement users.

Number of cards in a pack of cards = 52

Number of black cards = 26

Number of king cards = 4 (2 Red, 2 Black)

Required, the probability that if a card is drawn either card is black or a king = 

2652 + 452 = 3052 = 1526

Materials that usually allow electricity to pass through them are called Good conductors of electricity.

Conductors conduct electrical current very easily because of their free electrons.

Examples are :: Aluminium, Gold, Copper, Silver

Materials that do not allow or oppose electrical current & make poor conductors are called Insulators.

Examples are :: Glass, Plastic, Wood, Air,...

The chemical composition of a rock is mainly minerals.