Warning: Undefined array key "answer" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
30
Warning: Undefined array key "option1" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
30
Warning: Undefined array key "answer" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
31
Warning: Undefined array key "option2" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
31
Warning: Undefined array key "answer" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
32
Warning: Undefined array key "option3" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
32
Warning: Undefined array key "answer" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
33
Warning: Undefined array key "option4" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
33
Q.1 4. ખાદ્યપદાર્થના ડબા પર ટીનનું સ્તર લાગે છે નહિ કે ઝિંકનું, કારણ કે:
Warning: Undefined array key "answer" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
30
Warning: Undefined array key "option1" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
30
Warning: Undefined array key "answer" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
31
Warning: Undefined array key "option2" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
31
Warning: Undefined array key "answer" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
32
Warning: Undefined array key "option3" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
32
Warning: Undefined array key "answer" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
33
Warning: Undefined array key "option4" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
33
Q.2 3. એક તત્ત્વ ઑક્સિજન સાથે પ્રક્રિયા કરી ઊંચું ગલનબિંદુ ધરાવતું સંયોજન આપે છે. આ સંયોજન પાણીમાં પણ દ્રાવ્ય છે. આ તત્ત્વ હોઈ શકે:
Warning: Undefined array key "answer" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
30
Warning: Undefined array key "option1" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
30
Warning: Undefined array key "answer" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
31
Warning: Undefined array key "option2" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
31
Warning: Undefined array key "answer" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
32
Warning: Undefined array key "option3" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
32
Warning: Undefined array key "answer" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
33
Warning: Undefined array key "option4" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
33
Q.3 2. નીચેના પૈકી કઈ પદ્ધતિ લોખંડની તળવાની કડાઈને કાટ લાગવાથી અટકાવી શકે છે?
Warning: Undefined array key "answer" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
30
Warning: Undefined array key "option1" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
30
Warning: Undefined array key "answer" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
31
Warning: Undefined array key "option2" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
31
Warning: Undefined array key "answer" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
32
Warning: Undefined array key "option3" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
32
Warning: Undefined array key "answer" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
33
Warning: Undefined array key "option4" in
/home/u367000040/domains/gyanistudent.in/public_html/mcq_quiz.php on line
33
Q.4 1. નીચેની પૈકી કઈ જોડ વિસ્થાપન પ્રક્રિયાઓ આપે છે?