Some_Basic_Concepts_of_Chemistry_DPP_01_of_Lec-02_Yakeen_NEET_2025661e34e7a740ae00187c0260.pdf

NEET Yakeen NEET (2025) Chemistry...

NEET Yakeen NEET (2025) Chemistry DPP: 1 Some Basic Concepts of Chemistry Q1 Name the particles which make up matter? (C) 24 g of C2 (A) Non-metals (B) Metals (D) 1.0 g of H2 (C) Metalloids (D) Atoms Q7 Calculate the mass of 6.022 × 10 23 molecules Q2 What is matter? of Calcium Carbonate. (A) Anything which has mass but does not (A) 50 g occupies space (B) 100 g (B) Anything which has mass and occupies (C) 200 g space (D) None of these (C) Anything which neither has mass nor Q8 The number of molecules in 89.6 liters of a gas occupies space at NTP are (D) Anything which does not have mass but it (A) 6.02 × 1023 occupies space (B) 2 × 6.02 × 1023 Q3 Number of gm of oxygen in (C) 3 × 6.02 × 1023 32.2 gNa2 SO 4.10H2 O is (D) 4 × 6.02 × 1023 (A) 20.8 (B) 22.4 Q9 Aspirin has the formula C9 H8 O4. How many (C) 2.24 (D) 2.08 atoms of oxygen are there in a tablet weighing Q4 The volume occupied by 4.4 g of CO2 at STP 360mg ? is (A) 1.204 × 1023 (A) 22.4 L (B) 1.08 × 1022 (B) 2.24 L (C) 1.204 × 1024 (C) 0.224 L (D) 4.81 × 1021 (D) 0.1 L Q10 1u is equal to Q5 1 mole of atom X has mass, 0.444 times the (A) 1.66 × 10−24 g mass of 1 mole of atom Y. Atomic mass of X is (B) 1.66 × 10 −27 kg 2.96 times the mass of one atom of C − 12. (C) 1 g NA What is the atomic weight of Y. (D) All of these (A) 15.77amu (B) 80amu Q11 44.8 L of SO 2 ( g) weigh how much gram at (C) 46.66amu STP ? (D) 40amu (A) 128 g (B) 95 g Q6 16 g of oxygen has same number of molecules (C) 24 g as in (D) 50 g (A) 16 g of CO (B) 28 g of N2 Q12 Android App | iOS App | PW Website  NEET 11.2 L of O3 ( g) contains how many numbers of molecules? (A) NA molecules (B) NA /2 molecules (C) 2 NA molecules (D) 3 NA molecules Q13 Number of atoms present in 49 g of H2 SO4 ? (A) NA /7 (B) 7NA (C) 7NA /2 (D) 14NA Q14 Calculate number of oxygen atoms in 126 g of HNO3 ? (A) 6 NA (B) 12 NA (C) 3 NA (D) 14 NA Q15 Calculate total number of electrons in 88 g of C O2 ? (Gram atomic mass of C = 12g, O = 16g and atomic number of C=6 , O =8) (A) NA (B) 32 NA (C) 44 NA (D) 22 NA Q16 Calculate total number of valence electrons in 2.8 g of N3− ion (A) 2.6 NA (B) 1.6 NA (C) 7.8 NA (D) 0.8 NA Android App | iOS App | PW Website  NEET Answer Key Q1 (D) Q9 (D) Q2 (B) Q10 (D) Q3 (B) Q11 (A) Q4 (B) Q12 (B) Q5 (B) Q13 (C) Q6 (D) Q14 (A) Q7 (B) Q15 (C) Q8 (D) Q16 (B) Android App | iOS App | PW Website