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ICSE 10th Question Paper, Exams of Chemistry

Chemistry

This is a chemistry question paper

Typology: Exams

2021/2022

Uploaded on 05/10/2023

bharti-gupta
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LILAVATIBAI
PODAR
HIGH
SCHOOL
(ISC
PRELIMINARY
PAPER
(SEM-2)
2021-22
DURATION: 1
HOUR
30
MIN
SUBJECT:
CHEMISTRY
(Candidates
are
allouwed
additional
10
minutes
for only
readi
They
must
NOT
start
writing
during
this
time)
10
minutes for
only
reading
the
paper.
bmpt
all
questions
from
Section
A
and
any
three
questions
from
Section
B
rom
in
Intended
marks
for
question
questions
or
parts
of
questions
are
given
brackets
[|
SECTION A
(10
marks)
Attempt
all
questions
Question
1
question,
Write
the
correct
answer
only.
i. The IUPAC
name
of
CH3-CH2-CH=CH-CH3
is
Choose
the
correct
answers
to
the
questions
from
the
given
options.
(Do
not
copy
the
[10
b.
Pent-3-ene
a.
But-2-ene
c.
Pent-2-ene
d.
Pent-2-yne
i.
The
second
homologue
member
of
alkyne
is
a. Ethyne
c.
Butyne
b.
Propyne
d.
Propene
ii.
An
ore
of
iron
is
b.
Argentite
d.
Bauxite
a.
Steel
c.
haematite
iv.
The
name
of
the
process
for
commercial
preparation
of
sulphuric
acid
is
a.
Haber's
process
c.
Ostwald's process
b.
Contact
process
d. Le-chateliar process
v.
General
formulae
of
alkane
is
a. CaHan b.
CnHant2
c.
CnH2n-2
d.
CnHaO
V.
Gucose
is
treated
with
concentrated
suphuric
acid
to
give
carbon
black.
ue
property
of
concentrated
sulphuric
acid
exhibited
by
this
reaction
1s
a.
Acidic
nature
b.
Dehydrating agent
d.
Non
volatile
acid
THIS
PAPER
CONSIST
OF
FOUR
PRINTED
SIDES
c. Oxidizing
property
Page 1
of
4
pf3
pf4

Partial preview of the text

Download ICSE 10th Question Paper and more Exams Chemistry in PDF only on Docsity!

LILAVATIBAI PODAR^

HIGH SCHOOL^ (ISC

PRELIMINARY PAPER^

(SEM-2) 2021-

DURATION: 1 HOUR 30 MIN

SUBJECT: CHEMISTRY

(Candidates are^

allouwed

additional 10 minutes for^ only^ readi

They must^ NOT^

start writing^ during^ this^ time)

10 minutes for only^ reading the^ paper.

bmpt all questions^

from Section^ A^ and^ any^

three questions from

Section B

rom

in

Intended marks^

for question questions^

or parts of^ questions^ are given

brackets [|

SECTION A (10 marks) Attempt all questions Question 1

question, Write^ the^

correct answer^ only.

i. The IUPAC^ name^ of^

CH3-CH2-CH=CH-CH3 is

Choose the^ correct^

answers to the^ questions^ from^ the^ given^ options.^ (Do^ not^ copy^ the

[

b. Pent-3-ene a. But-2-ene c. Pent-2-ene d.^ Pent-2-yne

i. The second^ homologue^ member^ of^ alkyne^

is a. Ethyne c. Butyne

b. Propyne

d. Propene

ii. An ore of iron is

b. Argentite

d. Bauxite

a. Steel c. haematite

iv. The name of the process for^ commercial^ preparation^ of^ sulphuric^

acid is a. Haber's process c. Ostwald's process

b. Contact process d. Le-chateliar process

v. General formulae of alkane is a. CaHan b. CnHant

c. CnH2n-2 d. CnHaO

V. Gucose is treated with concentrated suphuric acid to give carbon^ black.^ ue

property of concentrated sulphuric acid exhibited by this reaction 1s

a. Acidic nature b. Dehydrating agent

d. Non volatile acid THIS PAPER CONSIST OF FOUR PRINTED SIDES

c. Oxidizing property

vii. When sulphur is treated with concentrated nitric acid, the oxidised product formed

by oxidation^ ofsulphur^ by^

cocentrated nitric^ acidis a. Sulphur dioxide c. Sulphuric acid

b. (^) Hydrogen (^) sulphide gas d. Sulphur trioxide

vii when^ ammonia^ is^ treated with^ Pbo a. PbOa,Na c. Pb,Ha0 , Na

the (^) product formed are b. Pb, Ho02, Na

d. PbOa, HaO , N

ix An^ example^ of^ an^ alloy^ of^ aluminium^ and^ magnesium^ is

a. Solder b.^ Brass

magnalium d.^ Steel

X the product formed when ethene is treated with Br2 is a. 1,1,2,2 tetra bromo ethane

. 1,2-dibromoethane

b. Bromo ethane

d. Ethanol

SECTIONB

(attempt any three questions from this section )

Question two

. Define the following (^121) a. Ore b. (^) Alloy

i. Write the product formed when ( Ethyne is treated with H2 in presence of Ha at 300°C Mi

b. Bauxite reacts with NaOH

a. Ane

ii. Write IUPAC name of the following compounds [ CaHsOH ehaot

CH3-CH-CH2 CHa

a. b.

CH C. (^) CH

HaC-C-CHa 27

CH

iv Write^ balanced^ equation^ for^ the^ following Ethane burnt^ with^ excess^ oxygen^ at^ high^ temperature b. Ethane treated^ with^ chlorine^ in^ presence^

of sunlight

c. (^) Ethene treated^ with^ Ha^ in^ presence^ of^ Ni^ at 300°C

iv

a.

C.

Qúestion flve Write the^ balanced^ chemical^ equation^ for (^) the (^) following

. ( Sodium aluminate^ to^ aluminium hydroxide^7 b. Aluminium^ hydroxide^ to^ alumina^

1 ii. Observe^ the^ diagram^ for^ fountain^ experiment^ ( spray a. (^) If the gas Y is (^) ammonia, what shall (^) be (^) the colour (^) of (^) the fountain b. (^) What (^) two (^) inference can (^) be (^) made about ammonia (^) gas from (^) the

above experiment

Wet Diopper

Aund Lithu

ii. Name the following (^131) a. 1UPAC name of CH3COOH

Type of reaction when ethane is treated with Cla in presence ofsunlight

C. Type of isomerism between n-butane and iso-butane e.

b.

For the lab preparation of HCl answer the following

Why is concentrated sulphuric acid preferred as compared to concentrated

nitric acid for lab preparation of HCl? ltf t

b. Why should temperature be kept below 200°C NaMo,I

c. (^) How is (^) dry HCl (^) gas (^) identified

Question six

i. Distinguish test

Dilute HCl solution and dilute HNOs solution [using silver nitrate solution ]

Ammonium bydroxide and dilute sulphuric acid [using BaCla solution

iv (^) [ a.

( a.

b.

ii. Give one word

Organic compounds having the^ same^ molecular^ formula^ but^ different Structural formula

a.

b. Property of an element to make selflinking chain

i. Write^ balance^ equation^ for^ the^ following^ and^ mention^

the type of^ chemical

property of suphuric acid^ (acidic^ nature^ ,^ dehydrating^ agent,^ oxidizing^

agent)

associated with the reaction a. (^) Sulphur treated^ with^ concentrated^ sulphuric^ acid Blue vitriol treated with concentrated sulphuric acid c. sodium^ hydroxide with^ dilute^ sulphuric^ acid iv Answer the following

b. ,

Oy 3

a General formulae^ of^ alkene fn^ fi b. Draw^ the^ structure^ of^ 3-methyl^ pent-1-yne C.IUPAC name^ of CH3^ - CHO