Chemistry - Comprehensive Mock Test 15

Question 141 Easy

In glucose simplest ratio between C, H and O is ?

A) 2 : 1 : 3 B) 3 : 2 : 1 C) 1 : 2 : 1 D) 3 : 4 : 1

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Question 142 Easy

Gram molecular mass of C6H12O6 is ?

A) 18.016g B) 180.096g C) 58.5g D) 70g

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Question 143 Easy

An ionic compound is electrically ?

A) neutral B) positively charged C) negatively charged D) none of above

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Question 144 Easy

6.022 * 1023 atoms of Sulphur contains ?

A) 2 moles B) 3 moles C) 4 moles D) 1 mole

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Question 145 Easy

Molecular formula gives ?

A) simplest ratio of atoms B) actual whole number ratio of atoms C) whole number ratio of atoms D) natural number ratio of atoms

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Question 146 Easy

Vinegar contains ?

A) 10% acetic acid B) 5%acetic acid C) 7% acetic acid D) 8% acetic acid

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Question 147 Easy

An oxide ion has -2 charge because ?

A) oxygen looses two electrons B) oxygen gains two electrons C) oxygen becomes neutral D) none of above

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Question 148 Easy

Compounds have atoms of ?

A) same sizes B) different sizes C) same electrons D) different electrons

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Question 149 Easy

Number of protons in nucleus constitute it's ?

A) atomic mass B) atomic number C) nucleon number D) number of neutrons

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Question 150 Easy

1 mole of substance refers to ?

A) molar mass B) atomic mass C) electron mass D) neutron mass

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