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s-વિભાગનાં તત્વો [આલ્કલી અને આલ્કલાઇન અર્થતત્વો]

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રસાયણ વિજ્ઞાન ધોરણ 11 સિમેસ્ટર 1

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રસાયણ વિજ્ઞાન

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s-વિભાગનાં તત્વો [આલ્કલી અને આલ્કલાઇન અર્થતત્વો]

ધોવાના સોડાને ગરમ કરતાં ....

CO દુર થાય છે.
(CO)₂દુર થાય છે.
CO + CO₂ દૂર થાય છે.
પાણીનો અણુ દુર થાય છે.

પાણીનો અણુ દુર થાય છે.

નીચેના આયનોને વાહકતાના આધારે ક્રમ (યોગ્ય) .....

$bold Rb to the power of bold plus bold space bold greater than bold space bold K to the power of bold plus bold space bold greater than bold space bold Cs to the power of bold plus bold space bold greater than bold space bold Na to the power of bold plus$
$bold K to the power of bold plus bold space bold greater than bold space bold Na to the power of bold plus bold space bold greater than bold space bold Rb to the power of bold plus bold space bold greater than bold space bold Cs to the power of bold plus$
$bold Cs to the power of bold plus bold space bold greater than bold space bold Rb to the power of bold plus bold space bold greater than bold space bold K to the power of bold plus bold space bold greater than bold space bold Na to the power of bold plus$
$bold Na to the power of bold plus bold space bold greater than bold space bold K to the power of bold plus bold space bold greater than bold space bold Rb to the power of bold plus bold space bold greater than bold space bold Cs to the power of bold plus$

આલ્કલી ધાતુમાં સંયોજકતા ઇલેક્ટ્રૉન કેટલા છે ?

પોટૅશિયમની ખનીજ ............. છે.

ક્રાયોલાઇટ
કાર્નેલાઇટ
બૉક્સાઇટ
ડોલોમાઇટ

પોર્ટલૅન્ડ સિમેન્ટમાં અગત્યના સંઘટકો પૈકી કયું સાચું છે ?

$bold Ca subscript bold 2 bold SiO subscript bold 4 bold space bold colon bold space bold 26 bold percent sign bold comma bold space bold Ca subscript bold 3 bold SiO subscript bold 3 bold colon bold space bold 51 bold percent sign bold comma bold space bold Ca subscript bold 3 bold Al subscript bold 2 bold O subscript bold 6 bold space bold colon bold space bold 11 bold space bold percent sign$
$bold Ca subscript bold 2 bold SiO subscript bold 4 bold space bold colon bold space bold 51 bold percent sign bold comma bold space bold CaSiO subscript bold 3 bold space bold colon bold space bold 26 bold space bold percent sign bold comma bold space bold Ca subscript bold 3 bold Al subscript bold 2 bold O subscript bold 6 bold space bold colon bold space bold 11 bold space bold percent sign$
$bold Ca subscript bold 2 bold SiO subscript bold 4 bold space bold colon bold space bold 26 bold space bold percent sign bold comma bold space bold Ca subscript bold 3 bold SiO subscript bold 3 bold space bold colon bold space bold 0 bold. bold 51 bold space bold percent sign bold comma bold space bold Ca subscript bold 3 bold Al subscript bold 2 bold O subscript bold 6 bold space bold colon bold space bold 26 bold space bold percent sign$
$bold Ca subscript bold 2 bold SiO subscript bold 4 bold space bold colon bold space bold 11 bold space bold percent sign bold comma bold space bold Ca subscript bold 3 bold SiO subscript bold 3 bold space bold colon bold space bold 0 bold. bold 51 bold space bold percent sign bold comma bold space bold Ca subscript bold 3 bold Al subscript bold 2 bold O subscript bold 6 bold space bold colon bold space bold 26 bold space bold percent sign$

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