11th Standard Syllabus & Materials
11th Standard
Tamilnadu 11th Standard Tamil மொழி கலை -செய்யுள் - ஒவ்வொரு புல்லையும் Important Questions And Answers Study Material - QB365
NEW11th Standard
Tamilnadu 11th Standard Tamil கேடில் விழுச்செல்வம் - உரைநடை - தமிழகக் கல்வி வரலாறு Important Questions And Answers Study Material - QB365
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - இலக்கணம் - பகுபத உறுப்புகள் Important Questions And Answers Study Material - QB365
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - செய்யுள் - குறுந்தொகை Important Questions And Answers Study Material - QB365 Set B
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - செய்யுள் - குறுந்தொகை Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - செய்யுள் - காவடிச்சிந்து Important Questions And Answers Study Material - QB365 Set B
Published on: 27/08/2019
Alkali and Alkaline Earth Metals
Download Tamil Nadu 11th Standard Chemistry question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Chemistry Test
1.
Alkali elements exhibit an oxidation state of ________
+1
+2
+3
+4
2.
The most electropositive element of the periodic table is _________
Gold
Platinum
Cesium
Calcium
3.
The hydration enthalpies of alkali metal ions decreases in ______ order.
Li+ > Na+ > K+ > Rb+ > Cs+
Cs+ > Rb+ > K+ > Na+ > Li+
Li+ > Rb+ > K+ > Na+ > Cs+
Rb+ > Cs+ > K+ > Na+ > Li+
4.
The atomic and ionic radii of alkali metals ________ on moving down the group
increases
decreases
does not vary
decreases and then increases
5.
Electronic configuration of 1s block of elements is ______
ns2
ns1
ns2np1
ns2np2
6.
Half life of francium is _______
12.3 years
12.3 mins
21 years
21 mins
7.
The radioactive element of group 1 is ______
rubidium
cesium
francium
radium
8.
Which of the following compounds will not evolve H2 gas on reaction with alkali metals ?
ethanoic acid
ethanol
phenol
none of these
9.
Which of the following statements is in correct ?
Li+ has minimum degree of hydration among alkali metal cations
The oxidation state of K in KO2 is +1
Sodium is used to make Na / Pb alloy
MgSO4 is readily soluble in water
10.
For alkali metals, which one of the following trends is incorrect ?
Hydration energy: Li > Na > K > Rb
Ionisation energy: Li > Na > K > Rb
Density: Li < Na < K < Rb
Atomic size: Li < Na < K < Rb
1.
(a)
+1
2.
(c)
Cesium
3.
(a)
Li+ > Na+ > K+ > Rb+ > Cs+
4.
(a)
increases
5.
(b)
ns1
6.
(d)
21 mins
7.
(c)
francium
8.
(d)
none of these
9.
(a)
Li+ has minimum degree of hydration among alkali metal cations
10.
(c)
Density: Li < Na < K < Rb
11th Standard Syllabus & Materials
11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - செய்யுள் - காவடிச்சிந்து Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - உரைநடை - மலை இடப்பெயர்கள் : ஓர் ஆய்வு Important Questions And Answers Study Material - QB365 Set B
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - உரைநடை - மலை இடப்பெயர்கள் : ஓர் ஆய்வு Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
Tamilnadu 11th Standard Tamil மாமழை போற்றுதும் - செய்யுள் - ஐங்குறுநூறு Important Questions And Answers Study Material - QB365 Set B
Tamilnadu Stateboard 11th Standard Subjects
Maths
Commerce
Economics
Biology
Business Maths and Statistics
Accountancy
Computer Science
Physics
Chemistry
Maths
Biology
Economics
Physics
Chemistry
History
Business Maths and Statistics
Computer Science
Accountancy
Computer Applications
History
Computer Technology
Commerce
Computer Applications
Computer Technology
Tamil
English
French
Tamilnadu Stateboard Standards
