Group 1 Elements is an important topic in the Chemistry section in BITSAT exam. Practising this topic will increase your score overall and make your conceptual grip on BITSAT exam stronger.
This article gives you a full set of BITSAT PYQs for Group 1 Elements with explanations for effective preparation. Practice of BITSAT Chemistry PYQs including Group 1 Elements questions regularly will improve accuracy, speed, and confidence in the BITSAT 2026 exam.
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BITSAT PYQs for Group 1 Elements with Solutions
1.
Which of the following is called Berthelot�s salt ?- $\left( NaPO _{3}\right)_{6}$
- $NaOCl$
- $KClO_3$
- $KHF_2$
2.
Following are colours shown by some alkaline earth metals in flame test. Which of the following are not correctly matched?- (i) and (iii)
- (i) only
- (ii) only
- (ii) and (iii)
3.
Which of the following statements are correct for alkali metal compounds? (i) Superoxides are paramagnetic in nature. (ii) The basic strengths of hydroxides increases down the group. (iii) The conductivity of chlorides in their aqueous solutions decreases down the group. (iv) The basic nature of carbonates in aqueous solutions is due to cationic hydrolysis.- (i) , (ii) and (iii) only
- (i) and (ii) only
- (ii), (iii) and (iv) only
- (iii) and (iv) only
4.
Thomas slag is- $Ca_3(PO_4)_2$
- $CaSiO_3$
- Mixture of (a) and (b)
- $FeSiO_3$
5.
Which of the following among alkali metal is most reactive ?- Na
- K
- Rb
- Cs
6.
The alkali metals form salt-like hydrides by the direct synthesis at elevated temperature. The thermal stability of these hydrides decreases in which of the following order?- NaH > LiH > KH > RbH > CsH
- LiH > NaH > KH > RbH > CsH
- CsH > RbH > KH > NaH > LiH
- KH > NaH > LiH > CsH > RbH
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