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MCQ for Full Syllabus Chemistry Some Basic Concepts Of Chemistry
Full Syllabus Chemistry students should refer to the following multiple-choice questions with answers for Some Basic Concepts Of Chemistry in Full Syllabus. These MCQ questions with answers for Full Syllabus Chemistry will come in exams and help you to score good marks
Some Basic Concepts Of Chemistry MCQ Questions Full Syllabus Chemistry with Answers
Question: If a 25.0 mL sample of sulfuric acid is titrated with 50.0 mL of 0.025 M sodium hydroxide to a phenolphthalein endpoint, what is the molarity of the acid?
a) 0.020 M
b) 0.100 M
c) 0.025 M
d) 0.050 M
Answer: 0.025 M
Question: Find which of the following compound can have mass ratios of C:H:O as 6:1:24
a) HO-(C=O)-OH
b) HO-(C=O)-H
c) H-(C=O)-H
d) H3CO-(C=O)-H
Answer: HO-(C=O)-OH
Question: The normality of 26% (wt/vol) solution of ammonia (density = 0.855 ) is approximately :
a) 1.5
b) 0.4
c) 15.3
d) 4
Answer: 15.3
Question: 1.25 g of a sample of Na2CO3 and Na2SO4 is dissolved in 250 ml solution. 25 ml of this solution neutralises 20 ml of 0.1N H2SO4.The % of Na2CO3 in this sample is
a) 84.8%
b) 8.48%
c) 15.2%
d) 42.4%
Answer: 84.8%
Question: A compound of Xe and F is found to have 53.5% of Xe. What is oxidation number of Xe in this compound ?
a) – 4
b) 0
c) + 4
d) + 6
Answer: + 6
Question: The prefix 1018 is
a) giga
b) kilo
c) exa
d) nano
Answer: exa
Question: The formation of CO and CO2 illustrates the law of
a) Reciprocal proportion
b) Conservation of mass
c) Multiple proportion
d) Constant composition
Answer: Multiple proportion
Question: The number of atoms in 0.004 gm of magnesium is close to
a) 24
b) 2 × 1020
c) 1020
d) 6.02 × 1023
Answer: 1020
Question: How many grams of concentrated nitric acid solution should be used to prepare 250 mL of 2.0M HNO3? The concentrated acid is 70% HNO3
a) 90.0 g conc. HNO3
b) 70.0 g conc. HNO3
c) 54.0 g conc. HNO3
d) 45.0 g conc. HNO3
Answer: 45.0 g conc. HNO3
Question: Number of atoms of He in 100 amu of He (atomic wt. of He is 4) are :
a) 25
b) 100
c) 50
d) 100 × 6 × 10–23
Answer: 25
Question: The product of atomic weight and specific heat of any element is a constant, approximately 6.4. This is known as
a) Dalton’s law
b) Avogadro’s law
c) Newton’s law
d) Dulong Pettit law
Answer: Dulong Pettit law
Question: 1.520 g of hydroxide of a metal on ignition gave 0.995g of oxide. The equivalent weight of metal is :
a) 1.52
b) 0.995
c) 190
d) 9
Answer: 9
Question: The vapour density of ozone is
a) 16
b) 32
c) 24
d) 48
Answer: 24
Question: In redox reaction 1 gm-eq of reducing agent requires P gm-eq. of oxidising agent. The value of P is
a) 1
b) 2
c) 3
d) Depends on reaction
Answer: 1
Question: Given the numbers : 161 cm, 0.161 cm, 0.0161 cm. The number of significant figures for the three numbers are
a) 3, 4 and 5 respectively
b) 3, 3 and 4 respectively
c) 3, 3 and 3 respectively
d) 3, 4 and 4 respectively
Answer: 3, 3 and 3 respectively
Question: In which of the following number all zeros are significant?
a) 0.0005
b) 0.0500
c) 50.000
d) 0.0050
Answer: 50.000
Question: The number of electrons in a mole of hydrogen molecule is
a) 6.023 × 1023
b) 12.046 × 1023
c) 3.0115 × 1023
d) Indefinite
Answer: 12.046 × 1023
Question: When 30 liters of H2 and 30 liters of N2 are reacted NH3 is formed and the yield is only 50%.The composition of the gaseous mixture will be
a) 5L of N2, 5L of H2 and 5 L of NH3
b) 5L of N2, 10L of H2 and 10 L of NH3.
c) 10L of N2, 15L of H2 and 5 L of NH3
d) 5L of N2, 15L of H2 and 10 L of NH3
Answer: 5L of N2, 15L of H2 and 10 L of NH3
Question: The equivalent weight of H2O2 in is
a) 17
b) 34
c) 68
d) 85
Answer: 17
Question: A gas is found to have a formula [CO]x. Its vapour density is 70, the x is :
a) 3.0
b) 3.5
c) 5.0
d) 6.5
Answer: 5.0
Question: The volume of Cl2 at STP obtained on reacting 4.35 g MnO2 with conc. HCl (At. wt. of Mn = 55)
a) 4.48 litre
b) 2.24 litres
c) 1.12 litre
d) 0.56 litre
Answer: 1.12 litre
Question: The number of sodium atoms in 2 moles of sodium ferrocyanide is :
a) 12 × 1023
b) 26 × 1023
c) 34 × 1023
d) 48 × 1023
Answer: 48 × 1023
Question: 1.520 g of hydroxide of a metal on ignition gave 0.995g of oxide. The equivalent weight of metal is :
a) 1.52
b) 0.995
c) 190
d) 9
Answer: 9
Question: The product of atomic weight and specific heat of any element is a constant, approximately 6.4. This is known as
a) Dalton’s law
b) Avogadro’s law
c) Newton’s law
d) Dulong Pettit law
Answer: Dulong Pettit law
Question: Number of atoms of He in 100 amu of He (atomic wt. of He is 4) are :
a) 25
b) 100
c) 50
d) 100 × 6 × 10–23
Answer: 25
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BITSAT Full Syllabus Chemistry Some Basic Concepts Of Chemistry MCQs
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Some Basic Concepts Of Chemistry BITSAT Full Syllabus MCQs Chemistry
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BITSAT MCQs Chemistry Full Syllabus Some Basic Concepts Of Chemistry
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