Page 33 - Chemistry ICSE Class X

Periodic Properties and Variations of Properties (Physical and Chemical) 21

Questions from Board Papers

Q 1. 5GNGEV VJG EQTTGEV CPUYGT HTQO VJG EJQKEGU # $ % CPF & YJKEJ CTG IKXGP 9TKVG QPN[ VJG NGVVGT EQTTGURQPFKPI VQ
VJG EQTTGEV CPUYGT [ICSE 2010]
(i) During ionisation metals lose electron, this change can be called:
(A) Oxidation (B) Reduction (C) Redox (D) Displacement
(ii) Which one of the following is not true for metals:
# /GVCNU CTG IQQF EQPFWEVQTU QH GNGEVTKEKV[
$ /GVCNU CTG OCNNGCDNG CPF FWEVKNG
% /GVCNU HQTO PQPRQNCT EQXCNGPV EQORQWPFU
& /GVCN YKNN JCXG QT QT GNGEVTQPU KP VJGKT XCNGPEG UJGNN
(iii) The number of electrons present in the valence shell of halogen is:
(A) 1 (B) 3 (C) 5 (D) 7
Q 2. #P GNGOGPV JCU VJG CVQOKE PWODGT 5VCVG [ICSE 2010]
(i) The period to which it belongs
(ii) The number of valence electrons in its atom
(iii) Whether it is a metal or nonmetal
Q 3. &GſPG VJG HQNNQYKPI VGTOU [ICSE 2010]
(i) Ionisation potential, (more appropriate ionisation energy)
KK 'NGEVTQP CHſPKV[
Q 4. )KXG TGCUQP CU VQ YJ[ [ICSE 2011]
K 6JG QZKFKUKPI RQYGT QH GNGOGPVU KPETGCUGU QP OQXKPI HTQO NGHV VQ TKIJV CNQPI C RGTKQF KP VJG RGTKQFKE VCDNG
Q 5. Fill in the blanks from the choices given below : [ICSE 2011]
(i) Across a period, the ionization potential __________ KPETGCUGU FGETGCUGU TGOCKPU UCOG
KK &QYP VJG ITQWR GNGEVTQP CHſPKV[ __________ KPETGCUGU FGETGCUGU TGOCKPU UCOG
Q 6. Choose the correct answer from the options given below: [ICSE 2011]
K 6JKU OGVCN KU C NKSWKF CV TQQO VGORGTCVWTG
# 2QVCUUKWO $ <KPE % )QNF & /GTEWT[
(ii) In the periodic table alkali metals are placed in the group __________
(A) 1 (B) 11 (C) 17 (D) 18
(iii) Which of the following properties do not match with elements of the halogen family?
# 6JG[ JCXG UGXGP GNGEVTQPU KP VJGKT XCNGPEG UJGNN
$ 6JG[ CTG JKIJN[ TGCEVKXG EJGOKECNN[
% 6JG[ CTG OGVCNNKE KP PCVWTG
& 6JG[ CTG FKCVQOKE KP VJGKT OQNGEWNCT HQTO
Q 7. )KXG VJG PWODGT QH VJG ITQWR CPF VJG RGTKQF QH VJG GNGOGPV JCXKPI VJTGG UJGNNU YKVJ VJTGG GNGEVTQPU KP XCNGPEG
UJGNN [ICSE 2011]
Q 8. Choose the correct answer from the options given below: [ICSE 2012]
K #P GNGOGPV KP RGTKQF YJQUG GNGEVTQP CHſPKV[ KU \GTQ
(A) Neon (B) Sulphur (C) Sodium (D) Argon
KK #P CNMCNKPG GCTVJ OGVCN
(A) Potassium (B) Calcium (C) Lead (D) Copper
Q 9. )KXG TGCUQPU HQT VJG HQNNQYKPI [ICSE 2012]
K +QPKUCVKQP RQVGPVKCN QH VJG GNGOGPV KPETGCUGU CETQUU C RGTKQF
KK #NMCNK OGVCNU CTG IQQF TGFWEKPI CIGPVU
Q 10. Name the following metals: [ICSE 2012]
K # OGVCN YJKEJ KU WPCHHGEVGF D[ FKNWVG QT EQPEGPVTCVGF CEKFU
KK # OGVCN RTGUGPV KP RGTKQF ITQWR QH VJG RGTKQFKE VCDNG
Q 11. Choose the most appropriate answer from the following options: [ICSE 2013]
K #OQPI VJG RGTKQF GNGOGPVU VJG GNGOGPV YJKEJ JCU JKIJ GNGEVTQP CHſPKV[ KU
(A) Lithium (B) Carbon (C) Chlorine (D) Fluorine