Chemistry - Comprehensive Mock Test 1

Question 1 Easy

साधारण नमक (Common Salt) का रासायनिक नाम क्या है?

A) सोडियम क्लोराइड (NaCl) B) कैल्शियम कार्बोनेट (CaCO3) C) सोडियम बाइकार्बोनेट (NaHCO3) D) सल्फ्यूरिक एसिड (H2SO4)

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Solution Breakdown:

साधारण नमक का रासायनिक नाम सोडियम क्लोराइड (Sodium Chloride) है, और इसका रासायनिक सूत्र NaCl होता है।

Question 2 Medium

If an isotope of uranium, uranium-235, has 92 protons, how many protons does the isotope uranium-238 have

A) 92 B) 95 C) 143 D) 146

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Question 3 Medium

A carbon atom with 6 protons, 6 electrons, and 6 neutrons would have a mass number of

A) 6 B) 18 C) 12 D) 15

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Question 4 Easy

Which of the following ion has the largest radius

A) Cl⁻ B) S²⁻ C) Na⁺ D) F⁻

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Question 5 Medium

The total value of magnetic quantum number for n = 4

A) 9 B) 16 C) 12 D) None of these

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Question 6 Easy

Number of mole of 1 m³ gas at NTP are

A) 44.6 B) 40.6 C) 42.6 D) 48.6

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Question 7 Easy

In Cu (Atomic no. – 29)

A) 13 electrons have spin in one direction and 16 electrons in other direction. B) 14 electrons have spin in one direction and 15 electrons in other direction. C) One electron can have spin only in clockwise direction. D) None of above is correct.

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Question 8 Medium

How many alkene form by C₅H₁₀ (including stereo isomers)

A) 3 B) 4 C) 5 D) 6

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Question 9 Hard

Two liquids A and B are at 32°C and 24°C. When mixed in equal masses the temperature of the mixture is found to be 28°C. Their specific heats are in the ratio of?

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

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Question 10 Medium

Which of the following statements about a compound is incorrect

A) A molecule of a compound has atoms of different elements. B) A compound cannot be separated into its constituentelements by physical methods of separation. C) A compound retains the physical properties of itsconstituent elements. D) The ratio of atoms of different elements in a compoundis fixed

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Solution Breakdown:

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