Allotropes are forms of the _ element but have __ physical properties.

different, same

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same, different

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different, different

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same, same

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Solution

The correct option is B
same, different

Option 'a' is the correct answer

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Similar questions

Q. Allotropes are made up of ________ elements but have ________ physical properties.

The two elements A and B have similar chemical properties and do not form solid Hydrogen carbonate but react with Nitrogen forming Nitrides.Elements A and B are:

Q. The phenomenon of the existence of a chemical element in two or more forms differ in physical properties but of the same chemical nature is known as Allotropy. Carbon has two major allotropes diamond and graphite and the third one is Buckminsterfullerene. Diamond has a three-dimensional network of covalent bonds and is hard. In graphite, the carbon atoms are arranged in flat parallel layers as regular hexagons resulting in soft and ________ nature.

Q. Matter undergoes a change. The changes are of two types: Physical and chemical change.

A physical change is a change that involves only a change in the physical state of matter. Its chemical properties remain the same. Usually increasing the temperature or applying pressure or both bring about a physical change. On reversing the condition, that is reducing the temperature or reducing the pressure or both, the original state of matter is restored. In other words, physical changes are reversible.

A chemical change is a change that involves a change in the chemical composition of matter. A new substance is formed. In a chemical change, new chemical and physical properties of the substance are formed. In a chemical change, the chemical and physical properties of the substance formed will be different from the original substance.

In a chemical change, the properties that change are :

Q. The solid element A exhibits the property of catenation. It is also present in the form of a gas B in the air which is utilised by plants in photosynthesis. An allotrope C of this element is used in glass cutters.
(a) What is element A?
(b) What is the gas B?
(c) Name the allotrope C.
(d) State another use of allotrope C (other than in glass cutters).
(e) Name another allotrope of element A which exists as spherical molecules.
(f) Name a yet another allotrope of element A which conduct electricity.

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Allotropes are forms of the _______ element but have ________ physical properties.

The correct option is B same, different Option 'a' is the correct answer

Allotropes are forms of the _ element but have __ physical properties.

The correct option is B
same, different

Option 'a' is the correct answer