Multiple choice question

22 Li ,oa Mg rFkk Be vkSj Al ds xq.kksa esa lekurk dk ik;k tkuk -------- laca/k ds
dkj.k gSaA
Similarity in the properties of Li and Mg, Be and Al is due to ........ relationship
23 vk/kqfud vkorZ lkfj.kh esa dqy ----------- [kkus ¼dkWye½ gSa\ rFkk dqy --------vkorZ
gSa\
In the modern periodic table there are total number of column is ........... and
total number of periods is ................
4 4 ,oa ,oa 5 5 vad vad okys okys iz'u
iz'u
iz'u&24 eS.MyhQ dk vkorZ fu;e rFkk eS.MyhQ dh vkorZ lkj.kh dh mi;ksfxrk
izfrikfnr dhft;s\
Establish the utility of Mendeleef’s periodic table by giving Mendeleef’s
periodic law?
iz'u&25 vk/kqfud vkorZ fu;e rFkk eS.MyhQ dh vkorZ lkj.kh ds nks"k crykb;s\
Give modern periodic law and the defects in Mendeleef’s periodic table?
iz'u&26 vk/kqfud vkorZ lkj.kh esa eS.MyhQ dh vkorZ lkj.kh ds nks"kksa dks fdl izdkj
nwj fd;k x;k gS\
How the defects in Mendeleef’s periodic table have been removed by giving
modern periodic table or long form of the periodic table?
iz'u&27 s rFkk p CykWd ds rRoksa dks lkekU; ;k fu:id rRo D;ksa dgk x;k gS\ buds
lkekU; xq.kksa dks n'kkZb;s\
Why s and p block elements have been called the normal or typical elements?
Give their general or common properties?
iz'u&28 f–CykWd rRoksa dks ySUFksukbM~l rFkk ,DVhukM~l dgk x;k gSA buds lkekU;
xq.k rFkk bySDVªkfud foU;kl nhft;s\
17