Sona Pani glacier is located in which of the following districts of Uttarakhand ?

Pithoragarh
Chamoli
Uttarkashi
Bageshwar

The correct answer is (b) Chamoli.

Sona Pani glacier is located in the Chamoli district of Uttarakhand. It is one of the largest glaciers in the Garhwal Himalayas. The glacier is about 10 kilometers long and 2 kilometers wide. It is a popular destination for trekking and mountaineering.

The other options are incorrect. Pithoragarh is a district in the Kumaon region of Uttarakhand. Chamoli is a district in the Garhwal region of Uttarakhand. Uttarkashi is a district in the Garhwal region of Uttarakhand. Bageshwar is a district in the Kumaon region of Uttarakhand.