A. Small size
B. High nuclear charge
C. Both A and B
D. No authorized justification yet
Correct Answer: Both A and B ✔
Last Updated: February 11, 2021
Related MCQs
- Which element can form tripositive ion ?
- Boric acid cannot be used__________?
- Identify the correct statement regarding CO__________?
- CO2 is gas while SiO2 is solid at room temperature?
- Which of the following is not a use of silicon ?
- Aqueous solution of borax above 62°C gives crystals of__________?
- The process of aluminium extraction is called__________?
- Which one of the following is not a semiconductor ?
- Tincal is a mineral of__________?
- Which of the following shows inert pair effect ?
- The metal which is used in thermite process because of its activity is__________?
- Which of the following does not give Borax bead test ?
- Substance which is found in dried up lakes of Tibet and California is__________?
- Boron in soil has been considered micronutrient for__________?
- Which of the following is metasilicic acid ?
- Which of the following will decompose to produce litharge__________?
- If temperature of gallium arsenide is increased then its conductivity will__________?
- The coloured glassy mass in borax bead test is due to the formation of__________?
- Boron is non metal while other elements of IIIA group are metals. This is because__________?
- Silicon differ from silica by a group of__________?
- Because of its ability to combine with both oxygen and nitrogen aluminium metal is used__________?
- Orthoboric acid is 2.6% soluble in water at 40?C and __________at 107°C.
- In network of silica (SiO2) each silicon atom is surrounded by __________ atoms of osygen?
- Which electronic configuration corresponds to an element of group IIIA ?
- Aluminium oxide is__________?
- Special features of borate glass is that it is__________?
- Borax is a white crystalline solid and it is__________?
- One of the outstanding features of boron is its ability to form__________?