
	Trending ▼ ICSE CBSE 10th ISC CBSE 12th CTET GATE UGC NET Vestibulares ResFinder

ICSE Class X Question Bank 2024 : Chemistry

3 pages, 59 questions, 0 questions with responses, 0 total responses,

	Random Person	+Fave Message
	Profile Timeline Uploads

Home > fareehasiddiqua78 >

Formatting page ...

Lilavatibai Podar High School . ISC Unit Test 1 - 2024-25 Subject: Grade: Chemistry X Duration: Marks: 1 Hour 40 Instructions: All Questions are compulsory. The intended marks are given next to the questions. The time mentioned above is writing time. Q. 1 i. ii. iii. iv. v. vi. vii. viii. ix. x. xi. xii. Choose the correct answers to the questions from the given options. (Do not copy the questions, write the correct answers only.) In the 2ndperiod Neon has larger atomic size because: a) It easily accepts electrons. b) penultimate shell is half filled. c) outermost shell is completely filled resulting force of repulsion. d) It easily loses electrons. In the second period, if we move from Li to F , there is a regular decrease in: a) Atomic radius b) Atomic number c)electronegativity d) ionization potential. Which of the following remains unchanged on descending a group in the modern periodic table? a) metallic character b) Ionization potential c) atomic number d) valence electrons. An element in Period 3, whose electron affinity is zero: a) sulphur b) Neon c) Argon d) sodium. If the element has a low ionisation energy, then it is likely to be: a) metallic b) non-metallic c) electronegative d) both b & c. The element with highest ionisation potential is: a) Caesium b) Helium c) Hydrogen d) Radon. Which one of the following compounds neither dissociate nor ionise in water? a) Sodium hydroxide b) Potassium nitrate c)Hydrochloric acid d) Carbon tetrachloride. Which one of the following has only one set of lone pair of electrons? a) Ammonia b) water c) methane d) Magnesium oxide. Which combination of atoms can form a polar covalent bond? a) Na & Br. b) oxygen & oxygen c)Nitrogen & Nitrogen d) Hydrogen & chlorine. Which one of the following configurations represents the most metallic element? a)2,8,7 b)2,8,2 c)2,8,4 d)2,8,1. Molten sodium chloride conducts electricity due to the presence of: a) free molecules b) free electrons c) free ions d) free ions & molecules. The metallic hydroxide soluble in excess of sodium hydroxide is: b) Zn (OH)2 c) Ca (OH)2 d) both a & b. a) Pb (OH)2 This paper consists of 3 printed pages [15] Page 1 of 3

Formatting page ...

fareehasiddiqua78 chat

Horizontal lines at:
Guest Horizontal lines at:
AutoRM Data:
Box geometries: